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
    Restricted access - publisher's policy
    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
    Restricted access - publisher's policy
    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 ...