Exploració per autor "Pont Ribas, Arnau"
Ara es mostren els items 1-8 de 8
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An adaptive fixed-mesh ALE method for free surface flows
Baiges Aznar, Joan; Codina, Ramon; Pont Ribas, Arnau; Castillo, Ernesto (2017-01-01)
Article
Accés obertIn this work we present a Fixed-Mesh ALE method for the numerical simulation of free surface flows capable of using an adaptive finite element mesh covering a background domain. This mesh is successively refined and unrefined ... -
Computational aeroacoustics to identify sound sources in the generation of sibilant /s/
Pont Ribas, Arnau; Guasch Fortuny, Oriol; Baiges Aznar, Joan; Codina, Ramon; van Hirtum, Annemie (John Wiley & sons, 2019-01)
Article
Accés obertA sibilant fricative /s/ is generated when the turbulent jet in the narrow channel between the tongue blade and the hard palate is deflected downwards through the space between the upper and lower incisors and then impinges ... -
Concurrent finite element simulation of quadrupolar and dipolar flow noise in low Mach number aeroacoustics
Guasch Fortuny, Oriol; Pont Ribas, Arnau; Baiges Aznar, Joan; Codina, Ramon (Elsevier, 2016-07)
Article
Accés obertThe computation of flow-induced noise at low Mach numbers usually relies on a two-step hybrid methodolgy. In the first step, an incompressible fluid dynamics simulation (CFD) is performed and an acoustic source term is ... -
Interpolation with restrictions between finite element meshes for flow problems in an ALE setting
Pont Ribas, Arnau; Codina, Ramon; Baiges Aznar, Joan (John Wiley & Sons, 2017-06)
Article
Accés obertThe need for remeshing when computing flow problems in domains suffering large deformations has motivated the implementation of a tool that allows the proper transmission of information between finite element meshes. Because ... -
Numerical simulation of aeroacoustics using the variational multiscale method : application to the problem of human phonation
Pont Ribas, Arnau (Universitat Politècnica de Catalunya, 2018-02-23)
Tesi
Accés obertThe solution of the human phonation problem applying computational mechanics is covered by several research branches, such as Computational Fluid Dynamics (CFD), biomechanics or acoustics, among others. In the present ... -
Residual-based stabilization of the finite element approximation to the acoustic perturbation equations for low Mach number aeroacoustics
Guasch Fortuny, Oriol; Sánchez Martín, Patricia; Pont Ribas, Arnau; Baiges Aznar, Joan; Codina, Ramon (2016-12)
Article
Accés obertThe acoustic perturbation equations (APE) are suitable to predict aerodynamic noise in the presence of a non-uniform mean flow. As for any hybrid computational aeroacoustics approach, a first computational fluid dynamics ... -
Simulation of CabriI Loss-Offlow Experiments With The Trace/Fred Codes
Pont Ribas, Arnau (Universitat Politècnica de Catalunya / Eidegenössische Technische Hochschule Zürich, 2009)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorThis thesis, “Simulation of CABRI loss-of-flow experiments with the TRACE/FRED codes”, is a result of cooperation with IRSN (France), who transferred to PSI the CABRI facility specification and test data. The thesis has ... -
Unified solver for fluid dynamics and aeroacoustics in isentropic gas flows
Pont Ribas, Arnau; Codina, Ramon; Baiges Aznar, Joan; Guasch Fortuny, Oriol (2018-06)
Article
Accés obertThe high computational cost of solving numerically the fully compressible Navier–Stokes equations, together with the poor performance of most numerical formulations for compressible flow in the low Mach number regime, has ...