Now showing items 21-40 of 40

  • Numerical modelling of coastal defences using the smoothed particle hydrodynamic method 

    Crespo, Alejandro; Altomare, Corrado; Rogers, Benedict D.; Dominguez, Jose; Gironella Cobos, Xavier (2013)
    Conference report
    Restricted access - publisher's policy
    The present paper reports the results of the application of the Smoothed Particle Hydrodynamics (SPH) method to model the wave run-up over an armour breakwater. The units that form the outer layer of the structure have ...
  • On the generation of regular long waves in numerical wave flumes based on the particle finite element method 

    Castro Alves Oliveira, Tiago; Sánchez-Arcilla Conejo, Agustín; Gironella Cobos, Xavier; Madsen, Ole S. (2017-08)
    Article
    Open Access
    Most of the coastal hydraulic studies in physical and numerical wave flumes (NWF) require the correct generation of nonlinear, long period waves at intermediate and shallow water conditions. In this paper, the ability to ...
  • Overtopping formula for vertical tiers-headed breakwaters 

    Altomare, Corrado; Damiani, Leonardo; Gironella Cobos, Xavier (2011)
    Conference report
    Open Access
    The semi-empirical methods are useful tools to understand the wave overtopping phenomena, but uncertainty remains on their applicability. It’s necessary to carry out campaign surveys or laboratory tests to support them. ...
  • Reliability analysis of beaches as defenses against storm impacts under a climate change scenario 

    Sánchez-Arcilla Conejo, Agustín; Gómez Martínez, Marta; Gracia Garcia, Vicente; Gironella Cobos, Xavier; García León, Manuel (2014)
    Conference lecture
    Open Access
    An analysis of the probability of failure of beaches along the Catalan coast (Northwestern Mediterranean) is presented. The failure condition is defined when waves are able to overtop the beach and reach the backshore. The ...
  • Riesgos costeros y técnicas ópticas de observación 

    Sánchez-Arcilla Jr., Agustín; García León, Manuel; Gracia Garcia, Vicente; Marzeddu, Andrea; Gironella Cobos, Xavier; Sánchez-Arcilla Conejo, Agustín (2018-03)
    Article
    Restricted access - publisher's policy
    La intensificación de la presión de uso sobre nuestro litoral está generando un incremento de los niveles de riesgo, entendido como la probabilidad de un suceso por el valor económico de sus consecuencias. El aumento del ...
  • Scouring processes in harbour basins during the docking and undocking manoeuvring: laboratory experiments 

    Mujal Colilles, Anna; Gironella Cobos, Xavier; Sánchez-Arcilla Conejo, Agustín (Universidad de Cantabria, 2017-07-25)
    Article
    Open Access
  • Scouring processes in harbour basins during the docking and undocking manoeuvring: laboratory experiments 

    Mujal Colilles, Anna; Gironella Cobos, Xavier; Sánchez-Arcilla Conejo, Agustín (Iniciativa Digital Politècnica, 2016)
    Conference report
    Open Access
  • Ship manoeuvre analysis and simulation to obtain scouring related propeller variables 

    Llull Marroig, Antoni Ignaci; Mujal Colilles, Anna; Gironella Cobos, Xavier; Castells Sanabra, Marcel·la; Martínez de Osés, Francesc Xavier; Martín Mallofré, Agustí; Sánchez-Arcilla Conejo, Agustín (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
    Conference lecture
    Open Access
    The evolution of shipping industry in terms of bigger and more powerful ships, is causing several issues in existing ports and marinas designed, initially, to host smaller vessels with smaller propulsion systems and lower ...
  • Ship manoeuvre patterns to prevent propeller scouring effects 

    Castells Sanabra, Marcel·la; Mujal Colilles, Anna; Llull Marroig, Antoni Ignaci; Gironella Cobos, Xavier; Martínez de Osés, Francesc Xavier; Martín Mallofré, Agustí; Sánchez-Arcilla Conejo, Agustín (World Association for Waterborne Transport Infrastructure (PIANC), 2018)
    Conference report
    Open Access
  • Ship manoeuvring effects on propeller induced erosion 

    Mujal Colilles, Anna; Llull Marroig, Antoni Ignaci; Castells Sanabra, Marcel·la; Gironella Cobos, Xavier; Martínez de Osés, Francesc Xavier; Sánchez-Arcilla Conejo, Agustín (2018)
    Conference report
    Restricted access - publisher's policy
    The shipping industry evolution over the last decades has led to growing structural and operational problems, in particular, for old marinas with lower depths to hosts present ships and with higher drafts and power of ...
  • Spar concrete monolithic design for offshore wind turbines 

    Campos Hortigüela, Alexis; Molins i Borrell, Climent; Gironella Cobos, Xavier; Trubat Casal, Pau (2016-06)
    Article
    Restricted access - publisher's policy
    Significant research efforts are now being directed at floating offshore wind turbines. The main challenge posed by floating wind turbines is the high construction and installation costs of the substructure, which make it ...
  • Stern twin-propeller effects on harbor infrastructures. Experimental analysis 

    Mujal Colilles, Anna; Castells Sanabra, Marcel·la; Llull Marroig, Antoni Ignaci; Gironella Cobos, Xavier; Martínez de Osés, Francesc Xavier (2018-11-02)
    Article
    Open Access
    The growth of marine traffic in harbors, and the subsequent increase in vessel and propulsion system sizes, produces three linked problems at the harbor basin area: (i) higher erosion rates damaging docking structures; ...
  • Study of the bed velocity induced by twin propellers 

    Mujal Colilles, Anna; Gironella Cobos, Xavier; Cabrera Crespo, Alejandro Jacobo; Sánchez-Arcilla Conejo, Agustín (2017-09)
    Article
    Open Access
    Twin propellers without a rudder were studied using a physical model with a fixed clearance distance and three different rotating velocities. Experimental results were compared with results from theoretical expressions ...
  • Study of the efflux velocity induced by two propellers 

    Mujal Colilles, Anna; Gironella Cobos, Xavier; Jaquet, A.; Gómez Gesteira, Moncho; Sánchez-Arcilla Conejo, Agustín (EdiBios, 2015)
    Conference report
    Open Access
    Present analysis is related with seabed erosion caused during docking and undocking maneuvering. Twin propellers without rudder were studied using a physical model with a fixed clearance distance and three different rotating ...
  • The MARHIS network: an application to composite modelling for overtopping 

    Sánchez-Arcilla Conejo, Agustín; López Lara, Javier; Marzeddu, Andrea; Alvarez, Alvaro; Gironella Cobos, Xavier; Mujal Colilles, Anna; Losada, Iñigo (2018)
    Conference report
    Restricted access - publisher's policy
    This paper presents the MARHIS network, an added value aggregation of hydraulic facilities and numerical modelling tools plus field equipment from the Catalonia University of Technology and IH Cantabria. The paper presents ...
  • Tools for evaluation quay toe scouring induced by vessel propellers in harbour basins during the docking and undocking manoeuvring 

    Castells Sanabra, Marcel·la; Martínez de Osés, Francesc Xavier; Martín Mallofré, Agustí; Mujal Colilles, Anna; Gironella Cobos, Xavier (CRC Press, 2017)
    Conference report
    Open Access
    The evolution of the shipping industry (increased capacity and size of ships, power and self-propulsion), the increased productivity and rearrangement of spaces (port calls increased in number and frequency, changes in use ...
  • Tsunami hazards in the Catalan Coast, a low-intensity seismic activity area 

    Barranco, Ignasio; Gracia Garcia, Vicente; Sierra Pedrico, Juan Pablo; Perea, Hector; Gironella Cobos, Xavier (2017-09)
    Article
    Open Access
    The potential impacts of tsunamis along the Catalan Coast (NW Mediterranean) are analysed using numerical modelling. The region is characterized by moderate to low seismic activity and by moderate- to low-magnitude ...
  • Variability of wave impact measurements on vertical breakwaters 

    Marzeddu, Andrea; Oliveira, Tiago; Gironella Cobos, Xavier; Sánchez-Arcilla Conejo, Agustín (2017-11)
    Article
    Open Access
    The measurement of wave-induced impacts on structures involves significant scientific and engineering challenges. Regular nearly breaking pgbgand broken waves generated following cnoidal and first-order Stokes wavemaker ...
  • Wave reflection on dissipative quay walls: an experimental study 

    Altomare, Corrado; Gironella Cobos, Xavier; Sánchez-Arcilla Conejo, Agustín; Sospedra Iglesias, Joaquim (2013)
    Conference report
    Restricted access - publisher's policy
    The paper discusses the influence of slope porosity and model scale for a low reflective vertical quay. Physical model tests were carried out in the small and large scale facilities at Universitat Politècnica de Catalunya, ...
  • Wave reflection, transmission and spectral changes at permeable low-crested structures 

    Sierra Pedrico, Juan Pablo; Dowding, D.D.; Persetto, Vito; Oliveira, Tiago Castro Alves; Gironella Cobos, Xavier; Mösso Aranda, César; Mestres Ridge, Marc (2011)
    Conference report
    Open Access
    Physical model tests were carried out in order to improve the understanding about the hydrodynamic processes that take place around a LCS when it is under wave attack. In particular, the wave transmission and reflection ...