Now showing items 1-20 of 27

    • A hybrid numerical model for coastal engineering problems 

      Altomare, Corrado; Suzuki, T.; Domínguez Alonso, José Manuel; Crespo, Alejandro J.C.; Gómez Gesteira, Moncho; Cáceres Rabionet, Iván (2014)
      Conference report
      Open Access
      The implementation and first validation of a hybridization technique between a NLSWE model and a meshless fully Navier-Stokes equation-based model are presented. The scope is to overcome the limitations of each numerical ...
    • An analysis of nearshore profile and bar development under large scale erosive and accretive waves 

      Sánchez-Arcilla Conejo, Agustín; Cáceres Rabionet, Iván (2018-04)
      Article
      Open Access
      Typical morphodynamic laboratory tests have been carried out at small scales and without sufficient coverage or resolution. These limitations, applying particularly to accretive tests, have obstructed reliable observations ...
    • Beach profile evolution towards equilibrium from varying initial morphologies 

      Eichentopf, Sonja; Van der Zanden, Joep; Cáceres Rabionet, Iván; Alsina Torrent, José María (2019-11)
      Article
      Open Access
      The evolution of different initial beach profiles towards the same final beach configuration is investigated based on large-scale experimental data. The same wave condition was performed three times, each time starting ...
    • Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments 

      Eichentopf, Sonja; Cáceres Rabionet, Iván; Alsina Torrent, José Maria (2018)
      Article
      Open Access
      Differences between breaker bar evolution under high energy (erosive) and subsequent mild energy (accretive) wave conditions are studied based on three data sets from large-scale morphodynamic experiments. Under erosive ...
    • Developments in acoustics for studying wave-driven boundary layer flow and sediment dynamics over rippled sand-beds 

      Thorne, Peter D.; Hurther, David; Cooke, Richard D.; Cáceres Rabionet, Iván; Barraud, P.A.; Sánchez-Arcilla Conejo, Agustín (2018-08)
      Article
      Open Access
      The processes of sediment entrainment, transport, and deposition over bedforms are highly dynamic and temporally and spatially variable. Obtaining measurements to understand these processes has led to ongoing developments ...
    • Erosive and accretive mobile bed experiments in large scale tests 

      Cáceres Rabionet, Iván; Sánchez-Arcilla Conejo, Agustín (World Scientific Publishing, 2015)
      Conference report
      Restricted access - publisher's policy
      Traditionally data and analysis for erosive or Accretive wave conditions have been carried out at relatively small scales and without enough spatial coverage or resolution. This limits the in depth analysis and does not ...
    • Extremes in hydraulic modelling: combined capabilities in the spanish network MARHIS 

      Sánchez-Arcilla Conejo, Agustín; Losada, Iñigo; Alvarez, Alvaro; González Marco, Daniel; Cáceres Rabionet, Iván; Lara, Javier L. (2016)
      Conference lecture
      Open Access
      This abstract provides an overview of the experimental work carried out at the MARHIS network formed by the Barcelona and the Santander research laboratories. The emphasis is on the role played by extremes as hydraulic ...
    • Influence of storm sequencing on breaker bar and shoreline evolution in large-scale experiments 

      Eichentopf, Sonja; Van der Zanden, Joep; Cáceres Rabionet, Iván; Baldock, Tom E.; Alsina Torrent, José María (2020-04)
      Article
      Restricted access - publisher's policy
      New large-scale experiments on the influence of storm sequencing on beach profile evolution are presented. The experiments comprised three sequences that commenced from the same initial beach profile. Each sequence consisted ...
    • Lagrangian simulation of suspended sediment in the swash zone 

      Alsina Torrent, José María; Cáceres Rabionet, Iván; Sospedra Iglesias, Joaquim; Baldock, Tom E. (2009-01-01)
      Article
      Restricted access - publisher's policy
      A numerical model is presented to simulate the sediment transport and beach morphology in the swash zone. The model resolves the non-linear shallow water equations in an Eulerian framework and then solves the advection-diffusion ...
    • Large-scale laboratory study of breaking wave hydrodynamics over a fixed bar 

      Van Der A, Dominic; Van der Zanden, Joep; O'Donoghue, Tom; Hurther, David; Cáceres Rabionet, Iván; McLelland, Stuart J.; Ribberink, Jan (2017-04-01)
      Article
      Open Access
      A large-scale wave flume experiment has been carried out involving a T¿=¿4 s regular wave with H¿=¿0.85 m wave height plunging over a fixed barred beach profile. Velocity profiles were measured at 12 locations along the ...
    • Natural accretion mechanisms: the role in future coastal sustainability 

      Sánchez-Arcilla Conejo, Agustín; Gracia Garcia, Vicente; García León, Manuel; Jiménez Quintana, José Antonio; Cáceres Rabionet, Iván; Valdemoro Garcia, Herminia (World Scientific Publishing, 2015)
      Conference report
      Restricted access - publisher's policy
      Although recent research has focused on erosive processes, natural accretion mechanisms have been known for many years, and they can provide an efficient solution to deal with sediment starved coasts. In this paper we shall ...
    • 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 ...
    • 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 ...
    • 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
      Restricted access - publisher's policy
      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 ...