Sara CORVARO

Pubblicazioni

Sara CORVARO

 

60 pubblicazioni classificate nel seguente modo:

Nr. doc. Classificazioni
34 4 Contributo in Atti di Convegno (Proceeding)
19 1 Contributo su Rivista
5 2 Contributo in Volume
1 5 Altro
1 8 Tesi di dottorato
Anno
Risorse
2020
Coastal Submerged Structures Adaptation to Sea Level Rise over Different Beach Profiles
ITALIAN JOURNAL OF ENGINEERING GEOLOGY AND ENVIRONMENT
Autore/i: Marini, Francesco; Mancinelli, Alessandro; Corvaro, Sara; Rocchi, Stefania; Lorenzoni, Carlo
Classificazione: 1 Contributo su Rivista
Abstract: The paper focuses on the analysis of the sea level rise and storms effects on natural or nourished beach profiles protected by submerged breakwaters. The increase in terms of intensity and frequency of extreme sea storms, and water levels produced by climate change, could lead to a deviation from the original trend of the beach. Typical Adriatic beaches will be considered as realistic study cases and a submerged structure for coastal protection of a natural or artificial (nourishment) beach is analysed in order to identify its resilience and its design adaptation. Different scenarios are taken into account, according to the 2019 special report of IPCC on climate change. A numerical model is here provided to evaluate beach response to wave set-up and sea level rise in the case of any beach profile protected by submerged breakwaters. The present model can provide useful information for the adaptation design of an existing defence submerged breakwater against coastal flooding and beach erosion. The shoreline position change, Δy, is evaluated by a large number of simulations varying both wave parameters (wave height Hi, wave length L) and the geometry of breakwater (submergence |Rc| berm width B, structure height hc). Different scenarios of sea level rises, as a consequence of climate change, and of storm conditions are considered in performing numerical simulations.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/289856 Collegamento a IRIS

2020
Upstream Propagating Long‐Wave Modes at a Microtidal River Mouth
e-proceedings of the 4 th EWaS International Conference Valuing the Water, Carbon, Ecological Footprints of Human Activities
Autore/i: Postacchini, Matteo; Melito, Lorenzo; Sheremet, Alex; Calantoni, Joseph; Darvini, Giovanna; Corvaro, Sara; Memmola, Francesco; Penna and Maurizio Brocchini, Pierluigi
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/290536 Collegamento a IRIS

2019
Research and Engineering for Resilient Infrastructures and Environment Protection
The First Outstanding 50 Years of “Università Politecnica delle Marche”
Autore/i: Bocci, Maurizio; Brocchini, Maurizio; Canestrari, Francesco; Cardone, Fabrizio; Corvaro, Sara; Darvini, Giovanna; Ferrotti, Gilda; Graziani, Andrea; Lorenzoni, Carlo; Mancinelli, Alessandro; Postacchini, Matteo; Soldini, Luciano; Virgili, Amedeo
Classificazione: 2 Contributo in Volume
Abstract: We discuss the contribution of the research groups that work at UNIVPM in the field of infrastructure engineering to the design of resilient hydraulic and transportation infrastructures and related solutions for the protection of the environment. After recalling the long history of research and engineering intervention of the groups of Hydraulics and Transportation Infrastructures of UNIVPM, we show how the activities of such groups are becoming of increasing importance in response to the growing request of innovative solutions for resilient infrastructures (e.g. coastal protection and maritime structures, road and airport pavements) and environment protection (e.g. coastal and river flood, air pollution, waste recycling and materials reuse). Such activities have been recently boosted by the resources made available to the two groups through the “Dipartimenti di Eccellenza” award, which largely focuses on the issue of engineering for resilient built and natural environments. A projection in the future of the activities of above is also proposed.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/273420 Collegamento a IRIS

2019
Problemi e soluzioni progettuali nella difesa della costa Problems and design solutions for coastal defence adaptation
Atti della XL edizione dei seminari tecnico-scientifici in “Tecniche per la Difesa del Suolo e dall’Inquinamento” a cura di Giuseppe Frega e Francesco Macchione
Autore/i: Mancinelli, Alessandro.; Marini, Francesco; Corvaro, Sara; Lorenzoni, Carlo
Editore: EdiBios
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/271771 Collegamento a IRIS

2019
Sustainable Engineering for Resilient Built and Natural Environments
The First Outstanding 50 Years of “Università Politecnica delle Marche”
Autore/i: Alici, Antonello; Bocci, Maurizio; Bonvini, Paolo; Brocchini, Maurizio; Calamai, Alessandro; Canestrari, Francesco; Capozucca, Roberto; Carbonari, Alessandro; Carbonari, Sandro; Cardone, Fabrizio; Clementi, Francesco; Clini, Paolo; Cocchi, Giammichele; Corvaro, Sara; Darvini, Giovanna; Davì, Fabrizio; Dezi, Luigino; Di Giuseppe, Elisa; D’Orazio, Marco; Ferretti, Maddalena; Ferrotti, Gilda; Gara, Fabrizio; Giretti, Alberto; Graziani, Andrea; Lancioni, Giovanni; Lemma, Massimo; Lenci, Stefano; Lorenzoni, Carlo; Malinverni, Eva Savina; Mancinelli, Alessandro; Mariano, Fabio; Mentrasti, Lando; Mondaini, Gianluigi; Montecchiari, Piero; Munafò, Placido; Naticchia, Berardo; Postacchini, Matteo; Quagliarini, Enrico; Quattrini, Ramona; Ragni, Laura; Serpilli, Michele; Soldini, Luciano; Virgili, Amedeo; Zampini, Giovanni
Editore: Springer
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/272866 Collegamento a IRIS

2019
Experimental and numerical analysis of the hydrodynamics around a vertical cylinder in waves
JOURNAL OF MARINE SCIENCE AND ENGINEERING
Autore/i: Corvaro, S.; Crivellini, A.; Marini, F.; Cimarelli, A.; Capitanelli, L.; Mancinelli, A.
Classificazione: 1 Contributo su Rivista
Abstract: The present study provides an extensive analysis on the hydrodynamics induced by a vertical slender pile under wave action. The authors carried out the study both experimentally and numerically, thus enabling a deep understanding of the flow physics. The experiments took place at a wave flume of the Università Politecnica delle Marche. Two different experimental campaigns were performed: In the former one, a mobile bed model was realized with the aims to study both the scour process and the hydrodynamics around the cylinder; in the latter one, the seabed was rigid in order to make undisturbed optical measurements, providing a deeper analysis of the hydrodynamics. The numerical investigation was made by performing a direct numerical simulation. A second order numerical discretization, both in time and in space, was used to solve the Navier-Stokes equations while a volume of fluid (VOF) approach was adopted for tracking the free surface. The comparison between experimental and numerical results is provided in terms of velocity, pressure distributions around the cylinder, and total force on it. The analysis of the pressure gradient was used to evaluate the generation and evolution of vortices around the cylinder. Finally, the relation between scour and bed shear stresses due to the structure of the vortex pattern around the pile was assessed. It is worth noting that the physical understanding of this last analysis was enabled by the combined use of experimental data on scour and numerical data on the flow pattern.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/276933 Collegamento a IRIS

2019
Wave-induced morphodynamics and sediment transport around a slender vertical cylinder
ADVANCES IN WATER RESOURCES
Autore/i: Miozzi, Massimo; Corvaro, Sara; Alves Pereira, Francisco; Brocchini, Maurizio
Classificazione: 1 Contributo su Rivista
Abstract: We study the dynamics of a sandy bed around a slender vertical cylinder forced by progressive, non-linear water waves. The seabed evolves continuously under the effects of the up-welling, down-welling and rolling events induced by vortical coherent structures. In turn, these are closely connected to the shape of the seabed, which is modified by the scouring and/or the deposition of the sand. Starting from a flat seabed, progressive waves induce a rapid and transient modification of the bottom morphology towards a dynamically stable equilibrium state, which is the focus of this work. The dynamical equilibrium state is a function of the wave period and is reached when the seabed morphology is not substantially altered. We describe such a state by an Eulerian in-phase analysis of the sand particle motion, inferred from Lagrangian data collected over a large number of wave passages. This analysis relies on the use of the defocusing digital PIV technique (DDPIV), for the first time applied to the specific flow of interest here. On the basis of the Eulerian analysis, the triggering of the key-events (up- and down-welling, rolling) over the wave phase is captured by identifying, through the Q > 0 criterion, the coherent flow structures responsible for the events. This analysis is coupled with the description of the sediment trajectories, analyzed in a Lagrangian manner and effectively assessing how and where the solid phase is transported during the key-events. Five main mobilization/transport mechanisms have been identified, three during the onshore flow and two during the offshore flow: (i) generation of a coherent structure reminiscent of a horseshoe vortex at the toe, (ii) intense scouring at the top of the flatbed region, (iii) vortex shedding in the wake during direct (onshore) flow, (iv) shear crossflow on the lee-side of the cylinder and (v) large vertical shearing in the flatbed region during the reverse (offshore) flow. At flow reversal, this shearing mechanism impacts on a significant area of sediments in the incoming region of the flow.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/254962 Collegamento a IRIS

2019
Water efficiency and economic assessment of domestic rainwater harvesting systems in buildings with one-to three-floor elevations
WATER SCIENCE AND TECHNOLOGY: WATER SUPPLY
Autore/i: Corvaro, Sara
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/271769 Collegamento a IRIS

2019
Rainwater Harvesting System Efficiency and Economic Assessment for Different Residential Building Typologies
New Trends in Urban Drainage Modelling
Autore/i: Corvaro, Sara
Editore: Springer
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263390 Collegamento a IRIS

2018
SCOUR PROTECTION AROUND A SINGLE SLENDER PILE EXPOSED TO WAVES
Proceeding of the 36th Conference on Coastal Engineering, Baltimore, Maryland, 2018
Autore/i: Corvaro, Sara; Marini, Francesco; Mancinelli, Alessandro; Lorenzoni, Carlo
Editore: Patrick Lynett
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263281 Collegamento a IRIS

2018
IDRODINAMICA INTORNO AD UN PALO SOTTO L’AZIONE ONDOSA
Atti del XXXVI Convegno Nazionale di Idraulica e Costruzioni Idrauliche
Autore/i: Marini, Francesco; Corvaro, Sara; Lorenzoni, Carlo; Mancinelli, Alessandro; Crivellini, Andrea
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263283 Collegamento a IRIS

2018
Opere a mare realizzate in sacchi in geotessuto
Atti della XXXIX edizione dei seminari tecnico-scientifici in “Tecniche per la Difesa del Suolo e dall’Inquinamento” a cura di Giuseppe Frega e Francesco Macchione
Autore/i: Mancinelli, Alessandro; Lorenzoni, Carlo; Corvaro, Sara
Editore: EdiBios
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/266305 Collegamento a IRIS

2018
HYDRODYNAMICS AROUND A SLENDER VERTICAL CYLINDER UNDER WAVES
Proceedings of the 7th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab18)
Autore/i: Corvaro, Sara; Crivellini, Andrea; Capitanelli, Loris; Marini, Francesco; Mancinelli, Alessandro
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263282 Collegamento a IRIS

2018
DIRECT NUMERICAL SIMUALTION OF WAVE-STRUCTURE INTERACTIONS
Atti del XXXVI Convegno Nazionale di Idraulica e Costruzioni Idrauliche
Autore/i: Capitanelli, Loris; Cimarelli, Andrea; Corvaro, Sara; Crivellini, Andrea; Franicolini, Matteo
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263387 Collegamento a IRIS

2018
COHERENT VORTICAL STRUCTURES IN PLUNGING BREAKERS
Atti del XXXVI Convegno Nazionale di Idraulica e Costruzioni Idrauliche
Autore/i: De Serio, Francesca; Brocchini, Maurizio; Buriani, Federica; Corvaro, Sara; Mossa, Michele
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263388 Collegamento a IRIS

2018
Experimental and Numerical Investigation of Pre-Breaking and Breaking Vorticity within a Plunging Breaker
WATER
Autore/i: Diana De Padova, ; Brocchini, Maurizio; Buriani, Federica; Corvaro, Sara; Francesca De Serio, ; Michele, Mossa; Stefano, Sibilla
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/256838 Collegamento a IRIS

2018
Hydro- and morpho-dynamics induced by a vertical slender pile under regular and random waves
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE
Autore/i: Corvaro, Sara; Marini, Francesco; Mancinelli, Alessandro; Lorenzoni, Carlo; Brocchini, Maurizio
Classificazione: 1 Contributo su Rivista
Abstract: This paper proposes an experimental study of the hydro- and morpho-dynamics induced by a slender vertical pile fitted into a sandy seabed and forced by sea waves in finite waters. The scour depth at the pile and the seabed morphology around it were measured and analyzed for both regular and random wave forcing. Scour depths due to regular waves were compared to those predicted in a previous study, revealing good agreement. The maximum scour depth occurred at the lateral side of the pile for waves characterized by a Keulegan-Carpenter (KC) number smaller than 7–8 and behind the pile for waves with KC>7–8. Such a result revealed an asymmetric effect on the scour depth because of the weaker reversal flow. This behavior was more evident for nonlinear waves being crests larger than troughs and, as a consequence, vortices, responsible for the scour processes, became even more energetic around crest stages. To better understand the dynamics in front of, around, and behind the cylinder, pressure measurements were obtained to evaluate the generation and evolution of vortices. The pressure data showed that the adverse pressure gradient around the pile was higher than on the upstream of the pile. The analyses of the pressure data seemed to confirm that, if the forcing was only due to waves, the effect of the lee-wake vortices on the scour depth around the cylinder was stronger than that due to the horseshoe vortices. Finally, the practical stochastic method proposed by previous authors to compute the maximum scour depth around a vertical pile exposed to random waves was verified. The best adaptation between measured and predicted scour depths was obtained by taking into account approximately half of the highest waves (instead of one-tenth) over the threshold; such a condition is still cautionary for a practical point of view. A simplification of the previously discussed methodology was proposed in which the characteristic wave that generates the scour depth is defined.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/263122 Collegamento a IRIS

2017
Evoluzione progettuale delle opere di difesa costiera
STUDI COSTIERI
Autore/i: Mancinelli, Alessandro; Corvaro, Sara; Lorenzoni, Carlo
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/247041 Collegamento a IRIS

2017
Wave attenuation over porous seabeds: A numerical study
OCEAN MODELLING
Autore/i: Torres-Freyermuth, Alec; Brocchini, Maurizio; Corvaro, Sara; Pintado-Patiño, José Carlos
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/251135 Collegamento a IRIS

2017
Comparison between the wintertime and summertime dynamics of the Misa River estuary
MARINE GEOLOGY
Autore/i: Brocchini, Maurizio; Calantoni, Joseph; Postacchini, Matteo; Sheremet, Alex; Staples, Tracy; Smith, Joseph; Reed, Allen H.; Braithwaite III, Edward F.; Lorenzoni, Carlo; Russo, Aniello; Corvaro, Sara; Mancinelli, Alessandro; Soldini, Luciano
Classificazione: 1 Contributo su Rivista
Abstract: The Misa River on the Italian Adriatic coast is typical of the rivers that drain the Apennine Mountain range. The focus of this study, conducted in the late summer of 2013 and mid-winter of 2014, was to contrast the general wintertime-summertime dynamics in the Misa River estuarine systemrather than investigate specific dynamical features (e.g. offshore sediment transport, channel seiche, and flocculation mechanisms). Summertime conditions of the Misa River estuary are characterized by low freshwater discharge and net sediment deposition whereas, in the wintertime, the Misa River and estuary is characterized by high episodic freshwater discharge and net erosion and sediment export. Major observed differences between wintertime-summertime dynamics in the Misa River and estuary are a result of seasonal-scale differences in regional precipitation and forcing conditions driven largely by the duration and intensity of prevailing wind patterns that frequently change direction in summertime while keep almost constant directions for much longer periods in wintertime, thus generating major sea storms. Sediment deposition was observed in the final reach of the Misa River and estuary in the summertime. However, in the wintertime, large flood events led to sediment erosion and export in the final reach of the Misa River and estuary that, in conjunction with storm-wave-induced mud transport, led to sediment deposition at the river entrance and in the adjacent nearshore region. The seasonal cyclic pattern of erosion and deposition was confirmedwith bathymetric surveys of the final reach of the estuarine region. A critical component for the balance between summertime deposition and wintertime erosion was the presence of an underlying mat of organic deposits that limited the availability of sediments for erosion in winter, when massive debris transport occurs. Further, suspended cohesive sediments flocs were subjected to smaller hydrodynamic stresses in the summertime favoring depositionwithin the estuary. Conversely, during wintertime storms, flocswere subjected to larger hydrodynamic stresses favoring breakup into smaller flocs and deposition outside the estuary.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/247010 Collegamento a IRIS

2016
PROTEZIONE DELLO SCAVO AL PIEDE DI UN PALO VERTICALE
Atti del Convegno Nazionale di Idraulica e Costruzioni Idrauliche
Autore/i: Mancinelli, Alessandro; Corvaro, Sara; Lorenzoni, Carlo; Tondi, Maria Cristina; Brocchini, Maurizio
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/249690 Collegamento a IRIS

2016
FLOW DYNAMICS OF WAVES PROPAGATING OVER DIFFERENT PERMEABLE BEDS
Proceedings of "35th Conference on Coastal Engineering" - ICCE2016
Autore/i: Corvaro, Sara; Mancinelli, Alessandro; Brocchini, Maurizio
Editore: Patrick Lynett
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/249063 Collegamento a IRIS

2016
Experimental analysis on the flow kinematics of water waves over different rough and permeable beds
Proceedings of the "7th International Short Course and Conference on Applied Coastal Research" - SCACR 2015
Autore/i: Corvaro, Sara; Mancinelli, Alessandro
Editore: EdiBios
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/249050 Collegamento a IRIS

2016
MORPHODYNAMICS AROUND A SLENDER CYLINDER UNDER A WAVY BOUNDARY LAYER
Proceedings of ICMF 2016 - 9th International Conference on Multiphase Flow
Autore/i: Corvaro, Sara; Brocchini, Maurizio; Miozzi, Massimo; Pereira, Francisco Alves; Lorenzoni, Carlo; Mancinelli, Alessandro; Tondi, Cristina
Editore: Associazione Italiana di Ingegneria Chimica
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/249055 Collegamento a IRIS

2015
The EsCoSed Project: Summertime-Wintertime Evolution of the Misa River Estuarine Environment
Atti del XXII Congresso AIMETA
Autore/i: Maurizio BROCCHINI; Joseph CALANTONI; Allen H. REED; Alex SHEREMET; Tracy STAPLES; Joseph SMITH; Matteo POSTACCHINI; Ed BRAITHWAITE; Tim KOONEY; Carlo LORENZONI; Aniello RUSSO; Alessandro MANCINELLI; Luciano SOLDINI; Sara CORVARO; Alessandro COLUCCELLI; Paolo PARONCINI
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/233514 Collegamento a IRIS

2015
Summertime conditions of a muddy estuarine environment: the EsCoSed project contribution
WATER SCIENCE AND TECHNOLOGY
Autore/i: BROCCHINI, MAURIZIO; Calantoni, J.; Reed, A. H.; POSTACCHINI, MATTEO; LORENZONI, CARLO; RUSSO, ANIELLO; MANCINELLI, ALESSANDRO; CORVARO, SARA; MORICONI, GIACOMO; SOLDINI, Luciano
Classificazione: 1 Contributo su Rivista
Abstract: As part of the Estuarine Cohesive Sediments (EsCoSed) project, a field experiment was performed in a highly engineered environment, acting as a natural laboratory, to study the physico-chemical properties of estuarine sediments and the associated hydro-morphodynamics during different seasons. The present contribution focuses on the results obtained from the summertime monitoring of the most downstream part of the Misa River (Senigallia, Italy). The measured hydrodynamics suggested a strong interaction between river current, wave forcing and tidal motion; flow velocities, affected by wind waves traveling upstream, changed significantly along the water column in both direction and magnitude. Surficial salinities in the estuary were low in the upper reaches of the estuary and exceeded 10 psu before the river mouth. Montmorillonite dominated the clay mineral assemblage, suggesting that large, low density flocs with high settling velocities (> 1 mms(-1)) may dominate the suspended aggregate materials.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/226471 Collegamento a IRIS

2015
Whole-wavelength description of a wave boundary layer with permeable wall
EXPERIMENTS IN FLUIDS
Autore/i: Miozzi, M.; Postacchini, Matteo; Corvaro, Sara; Brocchini, Maurizio
Classificazione: 1 Contributo su Rivista
Abstract: This paper describes the whole-wavelength, highly resolved velocity field statistics in an oscillatory boundary layer driven by gravity waves, evolving on both impermeable and permeable beds. Velocity data from PTV measurements are acquired in a small window and then extended to the whole wavelength by means of a new phase-locked slotting technique. This technique increases the robustness of statistics and resolution by improving the number of the data samples available for each spatial cell in the Eulerian representation of the oscillatory boundary layer. The into-and out-of-bed volume flux is evaluated and its effects on the velocity field are reported, together with its influence on vorticity evolution. The presence of coherent structures embedded in a shear-dominated scenario is emphasized. The Lagrangian flow features extracted by PTV are presented in the context of the generalized Lagrangian-mean theory. The Stokes drift vertical profile is estimated by comparing the Eulerian and Lagrangian velocities. A critical height-separating region where the volume flux due to ventilation has different effects on both orbital amplitudes and Stokes drift is found. This distance corresponds to the maximum height of the still-attached vorticity layer.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/227975 Collegamento a IRIS

2014
Strutture radenti in sacchi di geotessile: prove sperimentali
XXXIV Convegno Nazionale Idraulica e Costruzioni Idrauliche
Autore/i: Sartini, Maila; Corvaro, Sara; Lorenzoni, Carlo; Mancinelli, Alessandro; Tondi, Maria Cristina
Editore: Zaccaria Editore
Luogo di pubblicazione: Napoli
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/225387 Collegamento a IRIS

2014
Whole-wavelength description of a gravity-wave-driven flow over permeable beds
Proceeding of the "17th International Symposium on Applications of Laser Techniques to Fluid Mechanics"
Autore/i: Miozzi, Massimo; Corvaro, Sara; Postacchini, Matteo; Brocchini, Maurizio
Editore: Instituto Superior Tecnico, Lisboa, Portugal
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/233411 Collegamento a IRIS

2014
Uno studio a scala naturale dell'idro-morfodinamica estuarina: esperimenti di campo alla foce del fiume Misa
XXXIV Convegno Nazionale Idraulica e Costruzioni Idrauliche
Autore/i: Brocchini M.; Colantoni J.; Postacchini M.; Reed A.H.; Lorenzoni C.; Mancinelli A.; Soldini L.; Corvaro S.; Russo A.; Moriconi G.; Coluccelli A.; Paroncini P.; Ortenzio F.; Busca C.
Editore: Zaccaria Editore
Luogo di pubblicazione: Napoli
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/205867 Collegamento a IRIS

2014
Physycal models of geotextile sand containers for coastal protection structures
The proceedings of the 10th International Conference on Geosynthetics
Autore/i: Corvaro S.; Lorenzoni C.; Mancinelli A.
Editore: Deutsche Gesellschaft für Geotechnik e.V.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/225051 Collegamento a IRIS

2014
Barriere sommerse realizzate in sacchi di geotessile: risultati e confronti di prove sperimentali
XXXIV Convegno Nazionale Idraulica e Costruzioni Idrauliche
Autore/i: Tondi, Maria Cristina; Corvaro, Sara; Lorenzoni, Carlo; Mancinelli, Alessandro; Sartini, Maila
Editore: Zaccaria Editore
Luogo di pubblicazione: Napoli
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/225543 Collegamento a IRIS

2014
Flow dynamics on a porous medium
COASTAL ENGINEERING
Autore/i: S. Corvaro; E. Seta; A. Mancinelli; M. Brocchini
Classificazione: 1 Contributo su Rivista
Abstract: In this paper, which can be regarded as a companion of that by Corvaro et al. (2010), experimental results on the internal flow kinematics of waves which propagate on different types of beds, focusing on the nearbed dynamics induced by a porous bed, are illustrated and analyzed. The porous bed induces a major attenuation in the upstream-to-downstream direction of both wave height (≈ 30%) and internal flow velocity (≈ 50% for the maximum and minimum phases). The relationship between the wave height and the internal flow attenuation has been analyzed by means of wave energy arguments. We also found that the averaged reduction of mean flow between the smooth and porous-bed cases is approximately of 45% and 55%, respectively, for the horizontal and vertical velocity components. The stronger reduction of the vertical velocity is due to a significant variation of this velocity profile with respect to what occurs on an impermeable bed. An optical technique is used to extract the flow velocity from suitable video images; the wave dynamics on the porous medium is analyzed by evaluating the mean wave flow, the turbulence and the vorticity fields over the layer. The turbulence, indirectly characterized in terms of instantaneous velocity spectra, is found to be largely confined within the bottom boundary layer, located at a position deeper than the peaks of the mean flow. From the analyses of the instantaneous velocity spectra a clear anisotropy and inhomogeneity are found for the nearbed turbulence. This is confirmed by the presence, in the bottom boundary layer, of elongated coherent vortical structures whose intensity is the maximum during the wave crest and trough phases.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/184304 Collegamento a IRIS

2014
A natural-scale study of cohesive sediment transport: The Misa River case
RIVER FLOW 2014 - Proceedings of the International Conference on Fluvial Hydraulics
Autore/i: Brocchini M.; Russo A.; Calantoni J.; Reed A.H.; Postacchini M.; Lorenzoni C.; Corvaro S.; Mancinelli A.; Moriconi G.; Soldini L.
Editore: CRC Press
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/205869 Collegamento a IRIS

2014
Fluid-particle interaction and generation of coherent structures over permeable beds: an experimental analysis
ADVANCES IN WATER RESOURCES
Autore/i: S. Corvaro; M. Miozzi; M. Postacchini; A. Mancinelli; M. Brocchini
Classificazione: 1 Contributo su Rivista
Abstract: We study the dynamics of the oscillatory bottom boundary layer (BBL) that develops at a porous bed under the action of propagating water waves (also known as “ventilated BBL”). In particular, experimental tests of a ventilated BBL generated over a permeable bed made of regular plastic spheres are analysed. With the purpose of characterizing typical dynamics of nearshore waves evolving over dissipative seabeds, we focus on one specific forcing condition, characterized by large nonlinearities and vorticity generation, and expect that such dynamics be qualitatively similar also for other wave regimes. Particle tracking enables an accurate definition of the hydrodynamics generated over the porous medium with specific focus on Eulerian velocity and vorticity fields and on Lagrangian particle trajectories. Nearbed velocity components are strongly influenced by the bed configuration (sphere caps) and are characterized by small-scale oscillations due to the presence of coherent structures over the interstices. Counter-rotating vortex sheets are generated and evolve during the entire wave period; their thickness grows rapidly when flow injection from the bed occurs, while it remains constant under the influence of in-bed flow suction. The evolution of near-bed particles is influenced by strain or vortex-dominated regions. When the intensity of the vortices just outside the BBL is large (generally after flow inversion), the momentum associated to the rotation of the lower layer of vortices in the BBL is comparable with that of the passive tracers, hence the particles are captured and their original trajectories are modified, jumping to a different layer. On the contrary when strain regions are dominant, particles are restricted in the same vorticity layer until sweep or ejection turbulent processes are observed and anomalous particle transport occurs from lower to higher vortex layers and vice versa. The latter occurs during the entire wave cycle, becoming the dominant process, while the former occurs before flow inversion and close to the porous bed. This result reveals that nearbed small-scale phenomena are weakly influenced by the wave mean flow. A detailed description of fluid suction and injection is proposed in terms of the mean flow dynamics (at wave scale), while the actual inflow/outflow of particles at the bed is seen to depend on local, small-scale flow properties. Suction and injection are generated during positive and negative water surface elevations and either squeeze or expand the flow downward/upward. The suction/injection perturbations contribute to the triggering of sweep and ejection events. Suction is mainly concentrated very close to the bed, injection is rapidly transported above the BBL, but the highest turbulence occurs in correspondence of suction events.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/184303 Collegamento a IRIS

2013
Fluid-particle interaction and generation of coherent structures over permeable beds: an experimental analysis
Proceedings of "Two-Phase Modelling for Sediment Dynamics In Geophysical Flows" - THESIS-2013 -S.H.F.
Autore/i: Postacchini M.; Corvaro S.; Miozzi M.; Mancinelli A.; Brocchini M.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/164730 Collegamento a IRIS

2013
A Novel Two-fluid Model for the Identification of Possible Multiple Solutions in Slightly Inclined Pipelines
INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
Autore/i: Corvaro S.; Brocchini M.
Classificazione: 1 Contributo su Rivista
Abstract: A novel mechanistic two-fluid model (CB model) similar, in spirit, to the Taitel and Dukler [1, 2] (TD model), for the identification of possible multiple solutions of a multi-phase (gas-liquid) stratified flow in slightly inclined pipelines, is proposed. While Blasius-type closures are used in the TD model to represent the wall friction coefficients, the newly-implemented CB model makes use of Colebrook-White-type closures. Moreover, different closures for the interfacial shear are also employed in the CB models. The predictive capabilities of the CB model have been tested by using several experimental data, finding a better agreement between measured and calculated data than that existing when the TD model is used. The region of multiple solutions is influenced by the closures in use, such a dependence is more evident when different interfacial friction factors are used. Moreover, for the CB model also the fluid mixture in use influences the boundaries of the non-uniqueness region, while by using the TD model the multiple-solution region is unchanged. The choice of closures for the interfacial friction strongly influences the holdups, the Andritsos and Hanratty [10] correlation significantly shifting the non-uniqueness region to small values of the inclination parameter. Such a behaviour is more and more significant with the increase of the superficial gas velocity, even if for values of the inclination parameter within the range of inclinations for stratified flows (i.e. less than about 30° from the horizontal [11]), multiple solutions were not found. Finally, for the fluid mixture and flow conditions analyzed, multivalued solutions are obtained only for upward flows. Moreover, the portion of multiple-solution region interested by co-current flow (that occurs for slightly upward and downward pipes) is rather small, so that the operational point unlikely falls within such a region in the case of the studied hydrocarbon gas-liquid mixture.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/88582 Collegamento a IRIS

2012
Analisi sperimentale di una spiaggia in presenza di un sistema di drenaggio
STUDI COSTIERI
Autore/i: Saponieri A.; Corvaro S.
Classificazione: 1 Contributo su Rivista
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/93463 Collegamento a IRIS

2012
Analisi sperimentale della vorticità indotta dal moto ondoso su una tubazione posata su fondo scabro e permeabile
Atti del XXXIII Convegno di Idraulica e Costruzioni Idrauliche
Autore/i: Mattioli M.; Corvaro S.; Brocchini M.; Mancinelli A.
Editore: EdiBios
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/81626 Collegamento a IRIS

2012
Strato limite oscillante su fondali scabri e permeabili. Prove sperimentali
Atti del XXXIII Convegno di Idraulica e Costruzioni Idrauliche
Autore/i: Corvaro S.; Mancinelli A.; Lorenzoni C.; Mattioli M.
Editore: EdiBios
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: CD-ROM. Tema I - Parte 5 (5e_1362)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/81625 Collegamento a IRIS

2012
Small-scale dynamics and fluid-particle interaction around a cylinder placed over a porous seabed
50th European Two phase flow group meeting 2012
Autore/i: Mattioli M.; Postacchini M.; Corvaro S.; Mancinelli A.; Brocchini M.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/164739 Collegamento a IRIS

2011
A novel two-fluid model for the study of multiple solutions of a multiphase flow in hilly terrain pipelines
MFIP12 - 12th International Conference on Multiphase flow in industrial plants
Autore/i: CORVARO S.; TERENZI A.; BROCCHINI M.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: abstract is included in the Conference booklet manuscript is included in the Conference USB pen drive
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/63431 Collegamento a IRIS

2011
A new analytical model for a stratified two-phase flow in inclined pipeline
ATTI DEL XX CONGRESSO AIMETA DI MECCANICA TEORICA E APPLICATA
Autore/i: CORVARO S.; BROCCHINI M.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: CD-ROM in formato cartaceo solo i sommari
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/62565 Collegamento a IRIS

2011
Hydrodynamic study of a drained beach
Proceedings of 3rd International Conference on the Application of Physical Modelling to Port and Coastal Protection
Autore/i: Veltri P.; Aristodemo F.; Ciavola P.; Corvaro S.; Saponieri A.; Verbeni B.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: Paper 68
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65964 Collegamento a IRIS

2011
Experimental investigation on wave set up and nearshore velocity field in presence of a BDS
JOURNAL OF COASTAL RESEARCH
Autore/i: Damiani L.; Vicinanza D.; Aristodemo F.; Saponieri A.; Corvaro S.
Classificazione: 1 Contributo su Rivista
Abstract: An extensive full scale laboratory investigation on a 2D physical model of a Beach Drainage System (BDS) was performed at the GWK in Hannover, Germany. The experiments aimed at improving the knowledge of the hydrodynamic and morphodynamic behaviour of a drained beach in order to allow the definition of the main design criteria. The present paper deals with the nearshore hydrodynamic aspects of a beach equipped with BDS. The adopted BDS consisted by 4 pipes installed below the wash zone and at a variable distance from the shoreline. Several drain configurations were considered under three wave energy conditions, paying attention to water table oscillations, wave set up, undertow currents and high-order velocity moments influenced by the system start up. The results show that the drains lead to a reduction in the water table level and, as a consequence, a lowering of wave set up on the beach. This effect induced a decrease in undertow currents and high-order velocity moments in the surf and swash zones. The observed flow characteristics can be used for energetic-based transport models able to predict erosional/accretionary trends in the nearshore morphodynamic changes under the influence of a BDS. The analyses yield useful hydrodynamic information on the general efficiency of a BDS in different wave conditions.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/57121 Collegamento a IRIS

2011
Comparative analysis of sea wave dissipation induced by three flow mechanisms
JOURNAL OF HYDRAULIC RESEARCH
Autore/i: Postacchini M.; Brocchini M.; Corvaro S.; Lorenzoni C.; Mancinelli A.
Classificazione: 1 Contributo su Rivista
Abstract: A comparative analysis is performed on the wave energy dissipation efficiency on various coastal protection devices. In-house experimental data on the performance of two innovative coastal defence methods and of traditional submerged breakwaters have been used. The analysis provides a quantitative comparison of the efficiency of wave dissipators based on either wave-breaking turbulence, near-bed turbulence, or inside-seabed turbulence decay. The comparison is made on the basis of wave height decay patterns described as a function of suitable dimensionless parameters. The dimensionless volume of maximum turbulence decay is found to be a useful parameter for the analysis. Efficiencies in reducing the intensity of the incident waves are measured by the wave transmission coefficient, which is found to range between 0.4 and 1.0. Submerged breakwaters were found to be the most efficient wave dissipators, especially for large waves, while comparable efficiencies are provided by the three mechanisms under analysis if the flow is forced by moderate waves.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/57199 Collegamento a IRIS

2010
Evoluzione del profilo di equilibrio lungo le spiagge marchigiane
Atti del XXXII Convegno di Idraulica e Costruzioni Idrauliche
Autore/i: Soldini L.; Corvaro S.; Lorenzoni C.; Mattioli M.
Editore: Walter Farina editore
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65957 Collegamento a IRIS

2010
Working of defence coastal structures dissipating by macro-roughness
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING-ASCE
Autore/i: Lorenzoni, Carlo; Soldini, Luciano; Brocchini, Maurizio; Mancinelli, Alessandro; Postacchini, Matteo; Seta, E; Corvaro, Sara
Editore: American Society of Civil Engineers / ASCE:1801 Alexander Bell Drive, # A776:Reston, VA 20191:(800)548-2723, (703)295-6210, EMAIL: marketing@asce.org, INTERNET: http://www.pubs.asce.org, Fax: (703)295-6211
Classificazione: 1 Contributo su Rivista
Abstract: The working features of innovative coastal defense structures that can dissipate the energy of incoming waves by the action of large-scale bottom unevennesses rigid blades covering the lower half of the water depth were investigated by means of a laboratory experimental campaign. The goal of the study was to characterize the ability of the structures to efficiently reduce the wave height with a minimal change in the mean water superelevations. Similar wave height reductions were achieved for both vertical and inclined blades; their efficiency was slightly superior to that of traditional submerged rubble-mound breakwaters of the same cross-shore extension. For the incident waves examined, very low mean water elevations were observed inshore of the structures, with the inclined blades producing the smallest values. These results suggest that the structures analyzed here could represent an alternative to submerged rubble-mound breakwaters from a hydrodynamic point of view to protect coastlines prone to erosion with minimal risk of dangerous rip currents.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/50310 Collegamento a IRIS

2010
On the wave damping due to a permeable seabed
COASTAL ENGINEERING
Autore/i: Corvaro, Sara; Mancinelli, Alessandro; Brocchini, Maurizio; Seta, E; Lorenzoni, Carlo
Classificazione: 1 Contributo su Rivista
Abstract: Laboratory experiments were performed to study the wave damping induced by a porous bed. During the propagation of waves over a porous medium the wave characteristics change: a significant wave height attenuation of about 20–30% is observed and, in almost all cases, an increase in wavelength. The wave decay is found to depend on the wave characteristics like the wave height, the wavelength and the wave shape. We have also studied the influence of the geometric properties of the porous bed (i.e. thickness and length) on the wave dissipation. It is found that the attenuation of the wave height increases with the permeable bed thickness and that there is a maximum wave dissipation for a length of the porous seabed equal to 2.0–2.5 times the wavelength. A comparison is also made of our findings with available literature results. A parametric study of the wave damping has been performed by varying the values of the resistance coefficients derived by both literature and experiments. Literature analytical models have been applied by using the resistance coefficients that better describe our flow conditions. All models in use underpredict the observed wave attenuation for any sensible values of the resistance coefficients.
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/37014 Collegamento a IRIS

2009
Experimental tests on sandy beach model protected by low-crested structures
Proceedings of the 4th SCACR International Short Conference on Applied Coastal Research, IAHR
Autore/i: Lorenzoni C.; Mancinelli A.; Postacchini M.; Mattioli M.; Soldini L.; Corvaro S.
Editore: Nuova Bios
Luogo di pubblicazione: CASTROLIBERO (COSENZA)
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65952 Collegamento a IRIS

2009
Some experimental studies on the sea wave disspation over different seabeds
AIMETA 2009 Atti del XIX Congresso dell'Associazione Italiana di Meccanica Teorica e Applicata
Autore/i: Corvaro, Sara; Lorenzoni, Carlo; Postacchini, Matteo; Seta, E; Soldini, Luciano; Brocchini, Maurizio; Mancinelli, Alessandro
Editore: Aras Edizioni
Luogo di pubblicazione: ANCONA
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/51350 Collegamento a IRIS

2009
Interazione di onde con fondale poroso
AIMETA 2009 Atti del XIX Congresso dell'Associazione Italiana di Meccanica Teorica e Applicata
Autore/i: CORVARO, SARA; LORENZONI, CARLO; Seta, E.; MANCINELLI, ALESSANDRO; BROCCHINI, MAURIZIO
Editore: Aras Edizioni
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/51347 Collegamento a IRIS

2009
La propagazione ondosa su mezzo poroso: analisi sperimentale
Editore: Università Politecnica delle Marche
Classificazione: 8 Tesi di dottorato
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/242094 Collegamento a IRIS

2009
Some experimental studies on the sea wave dissipation over different seabeds
Atti del XIX Congresso dell'Associazione di Meccanica Teorica e Applicata
Autore/i: Corvaro S.; Lorenzoni C.; Postacchini M.; Seta E.; Soldini L.; Brocchini M.; Mancinelli A.
Editore: Aras Edizioni
Luogo di pubblicazione: Ancona
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: CD_ROM, FL-02, Paper n.117
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65951 Collegamento a IRIS

2009
Study of the wave damping due to a porous bed
Atti del 2nd International Conference on the Application of Physical Modeling to Port and Coastal Protection
Autore/i: Corvaro S.; Seta E.; Postacchini M.; Mancinelli A.; Lorenzoni C.
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65953 Collegamento a IRIS

2008
Prove sperimentali in canale per onde su fondo permeabile
Atti del XXXI Convegno Nazionale di Idraulica e Costruzioni Idrauliche
Autore/i: CORVARO S.; LORENZONI C.; MANCINELLI A.; POSTACCHINI M.; SETA E.
Editore: Morlacchi Editore
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Abstract: CD-ROM, Paper n.332
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/65954 Collegamento a IRIS

2008
Prove sperimentali in canale per onde di mare su fondo permeabile
Atti del 31° convegno nazionale di idraulica e costruzioni idrauliche, CD-ROM allegato,332.pdf
Autore/i: S. CORVARO; C. LORENZONI; A. MANCINELLI; M. POSTACCHINI; E. SETA
Editore: Morlacchi editore
Classificazione: 4 Contributo in Atti di Convegno (Proceeding)
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/48423 Collegamento a IRIS

2008
L'applicazione delle recenti normative tecniche per le costruzioni in zona sismica alle opere marittime portuali. Parte prima: inquadramento normativo
Scritti in onore di Edoardo Benassai
Autore/i: S. CORVARO; C. LORENZONI
Editore: Nuova editoriale BIOS
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/41141 Collegamento a IRIS

2008
L'applicazione delle recenti normative tecniche per le costruzioni in zona sismica alle opere marittime portuali. Parte seconda: esempio di calcolo
Scritti in onore di Edoardo Benassai
Autore/i: S. CORVARO; C. LORENZONI
Editore: Nuova editoriale BIOS
Classificazione: 2 Contributo in Volume
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/40361 Collegamento a IRIS

2007
Le costruzioni in zona sismica delle opere marittime portuali
Notiziario del Consiglio dell'Ordine degli Ingegneri della Provincia di Napoli
Autore/i: CORVARO S; C. LORENZONI
Classificazione: 5 Altro
Scheda della pubblicazione: https://iris.univpm.it/handle/11566/49949 Collegamento a IRIS




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