Numerical analysis of the transpose diffusive term for viscoplastic-type non-Newtonian fluid flows using a collocated variable arrangement

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/81391

Title:	Numerical analysis of the transpose diffusive term for viscoplastic-type non-Newtonian fluid flows using a collocated variable arrangement
Author:	Carmona Muñoz, Ángel; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio
Other authors:	Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor
Abstract:	The aim of this work is to delve into the numerical analysis of viscoplastic-type non-Newtonian fluid flows. Specifically, improvements in the spatial discretization schemes and the temporal integration methods have been proposed to overcome the numerical problems introduced by the transpose diffusive term and associated with the velocity field discontinuity, the artificial viscous diffusion, and the transpose viscous coupling. The resulting knowledge may be useful, among many other reasons, to improve the corresponding numerical simulations and gain insight into the underlying physics of this class of non-Newtonian fluid flows.
Abstract:	The aim of this work is to delve into the numerical analysis of viscoplastic-type non-Newtonian fluid flows. Specifically, improvements in the spatial discretization schemes and the temporal integration methods have been proposed to overcome the numerical problems introduced by the transpose diffusive term and associated with the velocity field discontinuity, the artificial viscous diffusion, and the transpose viscous coupling. The resulting knowledge may be useful, among many other reasons, to improve the corresponding numerical simulations and gain insight into the underlying physics of this class of non-Newtonian fluid flows.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids -Àrees temàtiques de la UPC::Física::Termodinàmica -Viscoplasticity -Non-Newtonian fluids -Computational fluid dynamics -Aortic-aneurysm models -Shear-thinning fluids -Pulsatile flow -Constricted channel -Turbulent-flow -Heat-transfer -Simulation -Steady -Yield -Dinàmica de fluids computacional -Fluids no newtonians -Viscoplasticitat
Rights:	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Submitted version Article
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