Ponències/Comunicacions de congressos

Recent Submissions

  • CFD studies and experimental validation of the convective heat transfer coefficient in non-fully developed flows applied to conventional geometries used in particle accelerators 

    Rabasa, Mariona; Raush Alviach, Gustavo Adolfo; Quispe, Marcos; Colldelram, Carles; Casas, Joan; Capdevila Paramio, Roser; Sanchez, Marc; Bello, Hugo (Joint Accelerator Conferences Website (JACoW), 2023)
    Conference report
    Open Access
    In the field of Particle Accelerators engineering, the design of the cooling channels of its components has been extensively based on experimental correlations for the calculation of convective heat transfer coefficients. ...

  • Effect of biofilm formation on the aggregation of microplastics in upper-ocean turbulence 

    Grau Barceló, Joan; Capuano, Francesco; Jofre Cruanyes, Lluís (2023)
    Conference report
    Open Access
    The impact of biofilm formation on marine microplastics in the upper layers of the ocean has been investigated using direct numerical simulations with an Eulerian-Lagrangian point-particle approach. The influence of biofilm ...

  • Suitability of immersed-boundary methods for high-fidelity computational aeroacoustics 

    Grau Barceló, Joan; Torres Cámara, Ricardo; Jofre Cruanyes, Lluís; Capuano, Francesco (2023)
    Conference report
    Open Access
    This work presents a preliminary assessment of the suitability of the immersed boundary method (IBM) for high-fidelity direct sound computations. A ghost-cell IBM is implemented in conjunction with a recently developed ...

  • Rotating waves arising from the instability of magnetized spherical Couette flows 

    Ogbonna, Jude; García González, Fernando; Gundrum, Thomas; Stefani, Frank (2022)
    Conference lecture
    Open Access
    Rotating waves of various azimuthal wavenumbers appear in magnetised spherical Couette flows in time-dependent states. The criteria for the flow to enter a time-dependent state are determined by the values of Reynolds and ...

  • Rotating waves arising from the instability of magnetized spherical Couette flows 

    Ogbonna, Jude; García González, Fernando; Gundrum, Thomas; Stefani, Frank (2022)
    Conference report
    Open Access
    Rotating waves of various azimuthal wavenumbers appear in magnetized spherical Couette flows in time- dependent states. The criteria for the flow to enter a time-dependent state are determined by the values of Reynolds ...

  • Diagnostics of a hydraulic turbine failure 

    Egusquiza Montagut, Mònica; Presas Batlló, Alexandre; Valentín Ruiz, David; Valero Ferrando, Ma. del Carmen; Xu, Beibei; Chen, Diyi; Egusquiza Estévez, Eduard (2022)
    Conference report
    Open Access
    This paper presents the failure analysis and diagnostic of a hydraulic turbine. Shortly after a maintenance revision the thrust bearing of the turbine was destroyed when the turbine was put into operation. The damaged ...

  • Direct numerical simulation of wall-bounded turbulence at high-pressure transcritical conditions 

    Bernades, Marc; Capuano, Francesco; Jofre Cruanyes, Lluís (Springer Nature, 2022)
    Conference report
    Restricted access - publisher's policy
    Supercritical fluids are commonly utilized in energy conversion and propulsion applications due to the higher power and efficiencies they provide. Their increased performance is connected to the thermophysical properties ...

  • Characterization of the fluid damping in simplified models of pump-turbines and high head Francis runners 

    Moraga González, Greco Alonso; Valentín Ruiz, David; Egusquiza Montagut, Mònica; Zhou, Lingjiu; Presas Renom, Andreu (IOP Publishing, 2022)
    Conference report
    Open Access
    In order to satisfy the power demand in the electrical grid, hydraulic turbine units frequently work under off-design operation conditions and pass through transient events. These operation conditions can lead to high ...

  • Modeling a high temperature PEM fuel cell focusing on its thermal behavior 

    Reija Chao, Uxía; Torres Cámara, Ricardo; Maria, Serra Prat (2017)
    Conference report
    Open Access
    The aim of this work is to develop a Computational Fluids Dynamics model using COMSOL Multiphysics, focusing on the thermal behaviour of a real HT-PEMFC . Energy management is the main concern as a better refrigeration ...

  • Hybridization in Kaplan turbines. Wear and tear assessment 

    Valentín Ruiz, David; Presas Batlló, Alexandre; Egusquiza Montagut, Mònica; Valero Ferrando, Ma. del Carmen (IOP Publishing, 2022)
    Conference report
    Open Access
    In the current energy market, hydraulic turbines are increasingly demanded to work in Frequency containment reserve (FCR) mode to compensate the constant frequency fluctuations in the electrical grid. To do so, hydraulic ...

  • Promoting lab engagement in experimental compressible flow modelling 

    Armengol Sans, Sílvia; Raush Alviach, Gustavo Adolfo; Gámez Montero, Pedro Javier (European Society for Engineering Education (SEFI), 2022)
    Conference report
    Open Access
    The present work depicts the development of an experimental equipment that reveals compressible fluid dynamics, while collecting data from an incompressible flow like water in an open-channel. It consists of an extensive ...

  • Re-utilización de materiales domésticos al final de su vida útil como solución simple, sostenible y de bajo coste para la rehabilitación express de edificios antiguos y vulnerables: análisis térmico y acústico 

    Neri, Manuela; Pilotelli, Mariagrazia; Traversi, Marco; Levi, Elisa; Piana, Edoardo Alessio; Bannó, Mariasole; Pardo Bosch, Francesc; Cuerva Contreras, Eva; Guardo Zabaleta, Alfredo de Jesús; Pujadas Álvarez, Pablo (Universidad de Cantabria, 2022)
    Conference report
    Restricted access - publisher's policy
    Este documento tiene como objetivo investigar la posibilidad de convertir materiales domésticos al final de su vida útil (EoLHM), como ropa o embalajes, en materiales aislantes térmicos y acústicos de bajo costo para la ...

View more