Browsing by Author "Cáceres Rabionet, Iván"Més informacióMés informació

Now showing items 21-40 of 43

    • Nature based solutions for sediment starved deltas: the Ebro case in the Spanish Mediterranean coast 

      Sánchez-Arcilla Conejo, Agustín; Ibañez, Carles; Gracia García, Vicente; Garrote De marcos, Luis Maria; Cáceres Rabionet, Iván; López Gómez, David; de la Peña Olivas, José Manuel; Caiola, Nuno; Munne, Antoni; Espanya Forcadell, Antoni; Iglesias Picazo, Ana; Rovira, Albert; González Marco, Daniel; Grassa Garrido, José María (World Scientific, 2023)
      Conference report
      Restricted access - publisher's policy
      Deltas in river regulated basins have become coastal vulnerability hotspots, for which traditional coastal engineering does not provide acceptable risk reductions. This is well illustrated by the Ebro delta (W Mediterranean) ...

    • Near-bed sediment transport during offshore bar migration in large-scale experiments 

      Grossmann, Florian; Hurther, David; Van der Zanden, Joep; Cáceres Rabionet, Iván; Sánchez-Arcilla Conejo, Agustín; Alsina Torrent, José María (2022-05)
      Article
      Open Access
      This study presents novel insights into hydrodynamics and sediment fluxes in large-scale laboratory experiments with bichromatic wave groups on a relatively steep initial beach slope (1:15). An Acoustic Concentration and ...

    • Near-bed turbulent kinetic energy budget under a large-scale plunging breaking wave over a fixed bar 

      Van der Zanden, Joep; Van Der A, Dominic; Cáceres Rabionet, Iván; Hurther, David; McLelland, Stuart J.; Ribberink, Jan; O'Donoghue, Tom (Wiley, 2018-01-01)
      Article
      Open Access
      Hydrodynamics under regular plunging breaking waves over a fixed breaker bar were studied in a large-scale wave flume. A previous paper reported on the outer flow hydrodynamics; the present paper focuses on the turbulence ...

    • Nera-bed hydrodynamics and turbulence below a large-scale plunging breaking wave over a mobile barred bed profile 

      Van der Zanden, Joep; van der A, Dominic; Hurther, David; Cáceres Rabionet, Iván; O'Donoghue, Tom; Ribberink, Jan (Wiley, 2016-08-03)
      Article
      Open Access
      Detailed measurements are presented of velocities and turbulence under a large-scale regular plunging breaking wave in a wave flume. Measurements were obtained at 12 cross-shore locations around a mobile medium-sand breaker ...

    • New CCM technique for sheet flow measurements and its first applocation in swash zone experiments 

      Van der Zanden, Joep; Alsina Torrent, José María; Cáceres Rabionet, Iván; Buijsrogge, R.H.; Ribberink, Jan (International Association of Hydrological Sciences (IAHS), 2013)
      Conference report
      Restricted access - publisher's policy
      We present here a new conductivity-based system for measuring concentrations and grain velocities in the sheet-flow layer. The system is equipped with a new technique that translates measured concentrations back into ...

    • Observing shoreline fluxes: implications for swash and surf zone modeling 

      Sánchez-Arcilla Conejo, Agustín; Cáceres Rabionet, Iván; Grifoll Colls, Manel (2013)
      Conference report
      Open Access
      The scarcity of reliable and controlled observations of water and sediment fluxes near the shore is one of the main reasons for the many remaining challenges in the field of morphodynamics. In this paper we shall present ...

    • On the study of boundary layer sediment transport processes using new developmental acoustic techniques 

      Thorne, Peter D.; Hurther, David; Cooke, Richard D.; Barraud, P.A.; Barnoud, J.M.; Cáceres Rabionet, Iván; Sánchez-Arcilla Conejo, Agustín (2013)
      Conference report
      Open Access
      This study aims at presenting a set of novel acoustic flow and sediment measuring tools used in a complementary way for the investigation of fine-scale flow and sediment transport processes above a rippled sand bed under ...

    • Posidonia beach-cast and banquette: evaluation of sediment trapping and characterisation for coastal protection 

      Astudillo Gutiérrez, Carlos Salvador; Gracia García, Vicente; Sierra Pedrico, Juan Pablo; Cáceres Rabionet, Iván; Sánchez-Arcilla Conejo, Agustín (World Scientific, 2023)
      Conference report
      Restricted access - publisher's policy
      The accumulation of Posidonia meadow remains is a recurrent phenomenon along the Catalan coast. As we move along the coastline from Barcelona towards the south, during autumn and winter the remains of Posidonia Oceanica ...

    • Sand and transport process measurements under large-scale breaking waves 

      Van der Zanden, Joep; Van Der A, Dominic; Ribberink, Jan; O'Donoghue, Tom; Hurther, David; Cáceres Rabionet, Iván; Thorne, Peter D. (2015)
      Conference report
      Open Access
      The effects of wave breaking on sediment transport are studied through a new series of mobile-bed experiments in a large-scale wave flume. During the campaign, one experiment involving detailed sand transport process ...

    • Sand transport processes and bed level changes induced by two alternating laboratory swash events 

      Van der Zanden, Joep; Cáceres Rabionet, Iván; Eichentopf, Sonja; Ribberink, Jan; Werf, Jebbe J. van der; Alsina Torrent, José María (2019-10)
      Article
      Open Access
      Sand transport processes and net transport rates are studied in a large-scale laboratory swash zone. Bichromatic waves with a phase modulation were generated, producing two continuously alternating swash events that have ...

    • Sediment suspension events in the inner surf and swash zone. Measurements in large-scale and high-energy wave conditions 

      Alsina Torrent, José María; Cáceres Rabionet, Iván (2011-08)
      Article
      Restricted access - publisher's policy
      The present study presents a database of hydrodynamic properties and suspended sediment concentration collected within the inner surf and swash zones aiming to improve the current understanding of the sediment dynamics ...

    • Sediment transport and beach profile evolution induced by bi-chromatic wave groups with different group periods 

      Alsina Torrent, José María; Padilla, Enrique; Cáceres Rabionet, Iván (2016-08)
      Article
      Open Access
      In this paper, large-scale experimental data are presented showing the beach profile morphological evolution induced by four different bi-chromatic wave conditions characterized by very similar energy content between them ...

    • Spatial and temporal distributions of turbulence under bichromatic breaking waves 

      Van der Zanden, Joep; Van Der A, Dominic; Cáceres Rabionet, Iván; Larsen, Bjarke Eltard; Fromant, Guillaume; Petrotta, Carmelo; Scandura, Pietro; Li, Ming (2019-04)
      Article
      Open Access
      The present study aims to extend insights of surf zone turbulence dynamics to wave groups. In a large-scale wave flume, bichromatic wave groups were produced with 31.5 s group period, 4.2 s mean wave period, and a 0.58 m ...

    • SPH simulation of wave breaking over a barred beach and comparison with experiments 

      Scandura, Pietro; Altomare, Corrado; Cáceres Rabionet, Iván; Viccione, Giacomo; Van Der A, Dominic (Istituto Nazionale di Geofisica e Vulcanologia (INGV), 2022)
      Conference report
      Restricted access - publisher's policy
      This paper presents an SPH numerical simulation of the hydrodynamics due to monochromatic waves breaking on a rigid barred beach profile. The simulation is compared with large–scale laboratory experiments, in which detailed ...

    • Study of velocity changes induced by Posidonia oceanica surrogate and sediment transport implications 

      Astudillo Gutiérrez, Carlos Salvador; Cáceres Rabionet, Iván; Gracia García, Vicente; Sierra Pedrico, Juan Pablo; Sánchez-Arcilla Conejo, Agustín (Multidisciplinary Digital Publishing Institute (MDPI), 2024-04)
      Article
      Open Access
      An analysis of the interactions between wave-induced velocities and seagrass meadows has been conducted based on the large-scale CIEM wave flume data. Incident irregular wave trains act on an initial 1:15 sand beach profile ...

    • Suspended sediment transport and beach dynamics induced by monochromatic conditions, long waves and wave groups 

      Cáceres Rabionet, Iván; Alsina Torrent, José María (2016-02)
      Article
      Open Access
      This study presents the analysis of the water surface elevation, velocity and suspended sediment concentration measurements obtained at a large wave flume under mobile bed conditions. The wave reproduced erosive and accretive ...

    • The effect of air bubbles on optical backscatter sensor measurements under plunging breaking waves 

      Cáceres Rabionet, Iván; Alsina Torrent, José María; Van der Zanden, Joep; Van Der A, Dominic; Ribberink, Jan; Sánchez-Arcilla Conejo, Agustín (2020-08)
      Article
      Open Access
      Accurate suspended sediment concentration measurements are key to understand and quantify the sediment transport patterns in the surf and swash zones. One of the most widely used instruments to collect suspended sediment ...

    • The evolution of mobile bed tests: a step towards the future of coastal engineering 

      Sánchez-Arcilla Conejo, Agustín; Cáceres Rabionet, Iván; Thorne, Peter D.; Eiff, Olivier; Lacaze, Laurent; Hurther, David; Barraud, P.A.; Musumerci, Rosaria; Vousdoukas, Michalis; Sancho, Francisco (2013)
      Conference lecture
      Open Access
      Coastal Engineering still presents significant levels of uncertainty, much larger for sediment transport and morphodynamics than for the driving hydrodynamics. Because of that there is still a need for experimental research ...

    • The influence of wave groups and wave-swash interactions on sediment transport and bed evolution in the swash zone 

      Alsina Torrent, José María; Van der Zanden, Joep; Cáceres Rabionet, Iván; Ribberink, Jan (2018-10-01)
      Article
      Open Access
      Large scale laboratory measurements of sediment dynamics in the swash zone are presented. Two bichromatic wave group conditions were generated, having the same energy content but different wave group period (Tg = 15.0 s ...

    • Wave and flow response to an artificial surf reef: laboratory measurements 

      Cáceres Rabionet, Iván; Trung, Le Hai; van Ettinger, Hendrik Dirk; Reniers, Ad; Uijttewaal, Wim (American Society of Civil Engineers (ASCE), 2009-11-09)
      Article
      Restricted access - publisher's policy
      Waves and currents are essential elements in the design of an artificial surfing reef ASR. ASRs are primarily designed to optimize the surfing conditions i.e., increase the surfability of the incoming waves possibly in ...