Now showing items 1-20 of 21

    • Aplicación de enzimas como auxiliares en tintura de lana 

      Riva Juan, Ascensión; Alsina Torrent, José María; Prieto Fuentes, María Remedios (Instituto de Investigación Textil y Cooperación Industrial, 1999-01)
      Article
      Open Access
      Il s’agit d’une étude comparée sur l’action de trois enzymes ajoutées au bain de teinture comme adjuvants. Nous avons déterminé les absorptions de colorant, les différences de couleur entre les laines teintées avec et sans ...
    • Assessment and improvement of the wave generation accuracy using a wave separation method 

      Padilla, Enrique; Alsina Torrent, José María (2022-04)
      Article
      Open Access
      Free-wave contamination is a non-desirable but frequent characteristic in many wave tank experiments. Higherorder wave generation is not widely implemented yet, whereas the effectiveness of active wave absorption systems ...
    • 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 María (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 ...
    • Exercicis Expressió Gràfica GETI ETSEIB 2020/21 

      Villa Sicilia, Ma Arantzazu; Fernández Sánchez, Joaquín; Semeraro, Nunzia Alessandra; Solans Pujol, Anna Maria; Ibars Fonollosa, Guido; Alsina Torrent, José María; Balló Massa, Joana; López Pérez, Bruno (Universitat Politècnica de Catalunya, 2021-09)
      Problem statement, exercise
      Open Access
    • Exercicis Expressió Gràfica GETI ETSEIB 2021 22 

      Fernández Sánchez, Joaquín; Villa Sicilia, Ma Arantzazu; Monguet Fierro, José María; López Pérez, Bruno; Ibars Fonollosa, Guido; Martín Giménez, Javier; Alsina Torrent, José María; Semeraro, Nunzia Alessandra; Solans Pujol, Anna Maria; Balló Massa, Joana; Mataró, Joan (Universitat Politècnica de Catalunya, 2022-09)
      Practical exercise
      Open Access
    • 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
      Open Access
      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 ...
    • Laboratory measurements of the wave-induced motion of plastic particles: influence of wave period, plastic size and plastic density 

      Alsina Torrent, José María; Jongedijk, Cleo E.; van Sebille, Erik (Wiley, 2020-12-01)
      Article
      Open Access
      The transport of plastic particles from inland sources to the oceans garbage patches occurs trough coastal regions where the transport processes depend highly on wave-induced motions. In this study, experimental measurements ...
    • 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 ...
    • Long wave generation induced by differences in the wave-group structure 

      Padilla, Enrique; Alsina Torrent, José María (Wiley, 2018-12)
      Article
      Open Access
      The propagation of bichromatic wave groups with differences in the wave-group structure and its influence in long-wave generation are investigated. The wave-group structure is controlled by the number of wave groups (Ng) ...
    • Medidas experimentales obtenidas con videocámaras del movimiento de partículas plásticas inducido por el oleaje 

      Alsina Torrent, José María; Van Sebille, Erik (OmniaScience, 2021-02-01)
      Conference lecture
      Open Access
      El transporte de la basura plástica desde su origen terrestre hasta las zonas de acumulación conocidas en los grandes giros oceánicos se produce a través de las zonas costeras donde los procesos de transporte están dominados ...
    • Morphodynamics of sandy beaches under the influence of storm sequences: current research status and future needs 

      Eichentopf, Sonja; Karunarathna, Harshinie U.; Alsina Torrent, José María (2019-09)
      Article
      Open Access
      This paper reviews and discusses the current research status, trends, and future needs in the field of beach morphodynamics under the influence of storm sequences. The paper reviews how the three main research methods, ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Storm sequencing and beach profile variability at Hasaki, Japan 

      Eichentopf, Sonja; Alsina Torrent, José María; Christou, Marios; Kuriyama, Yoshiaki; Karunarathna, Harshinie U. (2020-06)
      Article
      Open Access
      Beach profile evolution under storm sequence forcing presents an emerging research topic that has only been investigated at a limited number of sites. The occurrence and effects of storm sequencing on beach profile evolution ...
    • 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 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 ...