Zobrazeno 1 - 10 of 70 pro vyhledávání: '"J.C. Cajas"'
1
Parallel Multiphysics Coupling: Algorithmic and Computational Performances
Autor: Marta Garcia-Gasulla, R. Borrell, J.C. Cajas, Mariano Vázquez, Alfonso Santiago, Charles Moulinec, Guillaume Houzeaux
Publikováno v: International Journal of Computational Fluid Dynamics. 34:486-507
Multiphysics problems involve the couplings of different sets of partial differential equations. Partitioned methods consider the individual solutions of each set, which upon iterating, converge to...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::faed6f0176ff2567b8655e422d635e7d
https://doi.org/10.1080/10618562.2020.1783440
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2
Vortex induced vibrations of a pivoted finite height cylinder at low Reynolds number
Autor: César Treviño, Ivette Rodriguez, Mariano Vázquez, Daniel Pastrana, Guillaume Houzeaux, J.C. Cajas, Oriol Lehmkuhl
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
The vortex induced vibrations (VIVs) of a pivoted cylinder with finite height have been numerically investigated. A mathematical model is introduced and described, and the resulting equations are numerically solved for low Reynolds number Re = 100, 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca9e57e1c0be21898cfc6f179e43826a
https://hdl.handle.net/2117/346665
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3
Fluid-structure interaction simulations outperform computational fluid dynamics in the description of thoracic aorta haemodynamics and in the differentiation of progressive dilation in Marfan syndrome patients
Autor: José Rodríguez-Palomares, J J Molins, Mariano Vázquez, R Pons, J.C. Cajas, Gisela Teixido-Tura, Andrea Guala, Artur Evangelista, Lydia Dux-Santoy, J Martorell
Publikováno v: Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Royal Society Open Science
Europe PubMed Central
Royal Society Open Science, Vol 7, Iss 2 (2020)
Abnormal fluid dynamics at the ascending aorta may be at the origin of aortic aneurysms. This study was aimed at comparing the performance of computational fluid dynamics (CFD) and fluid–structure interaction (FSI) simulations against four-dimensio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46864d0c4e08f46925df1e43bcd025f5
https://ddd.uab.cat/record/252538
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4
On the formation of Taylor-Görtler structures in the vortex induced vibration phenomenon
Autor: Ivette Rodriguez, Oriol Lehmkuhl, J.C. Cajas, D. Pastrana, Guillaume Houzeaux
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
In this work, the three-dimensional structure of the boundary layer in the context of the vortex induced vibration of a circular cylinder is presented and investigated for the first time. Large-eddy simulations of a low mass ratio ( m = 2.6 ) two-deg
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee9172c361028f046f2166d32d5fff7f
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5
Wall‐modeled large‐eddy simulation in a finite element framework
Autor: Guillaume Houzeaux, Herbert Owen, J.C. Cajas, Daniel Mira, Oriol Lehmkuhl, Georgios Chrysokentis, R. Borrell, Matias Avila
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
International Journal for Numerical Methods in Fluids
This work studies the implementation of wall modeling for large‐eddy simulation in a finite element context. It provides a detailed description of how the approach used by the finite volume and finite differences communities is adapted to the finit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::039d0449b5364b30ce7e6c0dfd14cad9
http://hdl.handle.net/2117/189903
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6
Extension of the parallel Sparse Matrix Vector Product (SpMV) for the implicit coupling of PDEs on non-matching meshes
Autor: R. Borrell, J.C. Cajas, Guillaume Houzeaux, Mariano Vázquez
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
The Sparse Matrix Vector Product (SpMV) is one of the main operations of iterative solvers, and, in a parallel context, it is also the siege of point-to-point communications between the neighboring MPI processes. The parallel SpMV is built in such a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e633a890812dc0e60617fa110fb0ccda
https://doi.org/10.1016/j.compfluid.2018.03.006
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7
Large-eddy simulations of the vortex-induced vibration of a low mass ratio two-degree-of-freedom circular cylinder at subcritical Reynolds numbers
Autor: Guillaume Houzeaux, Oriol Lehmkuhl, J.C. Cajas, Ivette Rodriguez, D. Pastrana
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
The vortex induced vibration phenomenon of a low mass ratio () two-degree-of-freedom circular cylinder at subcritical Reynolds numbers ( 5300, 11,000) has been investigated by means of large-eddy simulations. A low-dissipative spatial and time discre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fe595ab580385f9ef9af156c6ccd6dd
https://doi.org/10.1016/j.compfluid.2018.03.016
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8
Fluid-Structure Interaction Based on HPC Multicode Coupling
Autor: R. Borrell, Jordi Martorell, Marta Garcia, Mariano Vázquez, Daniel Pastrana, J.C. Cajas, D. J. Yánez, Guillaume Houzeaux, Antoni Artigues, Eva Casoni, Oriol Lehmkuhl, Rosa Maria Giner Pons, Hadrien Calmet
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
The fluid-structure interaction (FSI) problem has received great attention in the last few years, mainly because it is present in many physical systems, industrial applications, and almost every biological system. In the parallel computational field,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55ebbddf57283ec67756ecb40889bc9f
https://doi.org/10.1137/17m1138868
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10
Impact of sleeping position, gravitational forceeffective tissue stiffness on obstructive sleep apnoea
Autor: Gary Rosengarten, Omid Bafkar, J.C. Cajas, Stefan Gulizia, Ivan S. Cole, Vu Nguyen, Daniel R. Lester, Hadrien Calmet, Guillaume Houzeaux
Publikováno v: Journal of biomechanics. 104
Accurate prediction of deformation and collapse of the upper airway during breathing is required for effective and personalised treatment of obstructive sleep apnoea (OSA). While numerical modelling techniques such as fluid-structure interaction (FSI
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29844c0a30b20ae0f619b7e29399e0e3
https://pubmed.ncbi.nlm.nih.gov/32151382
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