WCSPH viscosity diffusion processes in vortex flows

Macia Lang, Fabricio and Sánchez Sánchez, Juan Miguel and Souto Iglesias, Antonio and González Gutierrez, Leo Miguel (2012). WCSPH viscosity diffusion processes in vortex flows. "International Journal for Numerical Methods in Fluids", v. 69 (n. 3); pp. 509-533. ISSN 0271-2091.


Title: WCSPH viscosity diffusion processes in vortex flows
  • Macia Lang, Fabricio
  • Sánchez Sánchez, Juan Miguel
  • Souto Iglesias, Antonio
  • González Gutierrez, Leo Miguel
Item Type: Article
Título de Revista/Publicación: International Journal for Numerical Methods in Fluids
Date: May 2012
Volume: 69
Freetext Keywords: WCSPH;particles;vortex;Lagrangian;viscous;Lamb–Ossen
Faculty: E.T.S.I. Navales (UPM)
Department: Enseñanzas Básicas de la Ingeniería Naval [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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The aim of this paper is to clarify the role played by the most commonly used viscous terms in simulating viscous laminar flows using the weakly compressible approach in the context of smooth particle hydrodynamics (WCSPH). To achieve this, Takeda et al. (Prog. Theor. Phys. 1994; 92(5):939–960), Morris et al. (J. Comput. Phys. 1997; 136:214–226) and Monaghan–Cleary–Gingold's (Appl. Math. Model. 1998; 22(12):981–993; Monthly Notices of the Royal Astronomical Society 2005; 365:199–213) viscous terms will be analysed, discussing their origins, structures and conservation properties. Their performance will be monitored with canonical flows of which related viscosity phenomena are well understood, and in which boundary effects are not relevant. Following the validation process of three previously published examples, two vortex flows of engineering importance have been studied. First, an isolated Lamb–Oseen vortex evolution where viscous effects are dominant and second, a pair of co-rotating vortices in which viscous effects are combined with transport phenomena. The corresponding SPH solutions have been compared to finite-element numerical solutions. The SPH viscosity model's behaviour in modelling the viscosity related effects for these canonical flows is adequate

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Item ID: 11781
DC Identifier: http://oa.upm.es/11781/
OAI Identifier: oai:oa.upm.es:11781
Deposited by: Memoria Investigacion
Deposited on: 13 Nov 2012 10:29
Last Modified: 22 Sep 2014 10:51
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