Now showing items 1-20 of 34

    • A general framework for wave separation in the frequency domain 

      Padilla, Enrique; Alsina Torrent, José María (2020-06)
      Article
      Open Access
      A general framework for wave separation in the frequency domain is presented and evaluated with successful results using theoretical examples of nonlinear waves. This framework consists of a qualitative and a quantitative ...
    • 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
    • Exercicis Expressió Gràfica GETI ETSEIB 2022 23 

      Villa Sicilia, Ma Arantzazu; Fernández Sánchez, Joaquín; Ibars Fonollosa, Guido; Martín Giménez, Javier; Solans Pujol, Anna Maria; Semeraro, Nunzia Alessandra; Alsina Torrent, José María; López Pérez, Bruno; Juan Colas, Maria Salud Montserrat; Mataró Villacampa, Joan; Robert Rincón, Miguel; Monguet Fierro, José María (Universitat Politècnica de Catalunya, 2023-07)
      Practical exercise
      Open Access
    • Influence of beach slope on morphological changes and dediment transport under irregular waves 

      Dionisio António, Sara; van der Werf, Jebbe; Horstman, Erik; Cáceres Rabionet, Iván; Alsina Torrent, José María; van der Zanden, Joep; Hulscher, Suzanne J.M.H. (Multidisciplinary Digital Publishing Institute (MDPI), 2023-11-27)
      Article
      Open Access
      This paper presents new data from large-scale wave flume experiments. It shows the beach profile evolution and sediment transport for two different bed slopes (1:15 and 1:25), and three irregular high-energy erosive wave ...
    • 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 ...
    • Influence of the initial beach profile on the sediment transport processes during post-storm onshore bar migration 

      Grossmann, Florian; Hurther, David; Sánchez-Arcilla Conejo, Agustín; Alsina Torrent, José María (2023-04)
      Article
      Open Access
      Onshore bar migration is a characteristic bar behavior during post-storm beach recovery. The present large-scale experiments, feature bichromatic wave groups over an initially steep (1:15), fully-evolving beach. The same ...
    • 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 ...
    • LOCATE v1.0: numerical modelling of floating marine debris dispersion in coastal regions using Parcels v2.4.2 

      Hernandez, Ivan; Castro Rosero, Leidy Maricela; Espino Infantes, Manuel; Alsina Torrent, José María (European Geosciences Union (EGU), 2024-03)
      Article
      Open Access
      The transport mechanisms of floating marine debris in coastal zones remain poorly understood due to complex geometries and the influence of coastal processes, posing difficulties in incorporating them into Lagrangian ...
    • LOCATE: prediction of plastic hotspots in coastal regions using numerical simulations in a coupled system 

      Hernandez, Ivan; Alsina Torrent, José María (OmniaScience, 2023-03)
      Conference lecture
      Open Access
      Los mecanismos de transporte de basura marina flotante en zonas costeras no se conocen bien, y su seguimiento con modelos numéricos es complejo debido a la geometría, procesos hidrodinámicos y la influencia de los procesos ...
    • 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) ...
    • Measurements and modeling of sediment transport during offshore and onshore bar migration 

      Grossmann, Florian; Hurther, David; Sánchez-Arcilla Conejo, Agustín; Alsina Torrent, José María (World Scientific, 2023)
      Conference report
      Restricted access - publisher's policy
      Effective design of interventions in the coastal zone (flood defense, nourishments, etc.) requires understanding of long term coastal evolution. Historically, such evolution has been difficult to model because of different ...
    • 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 ...