WCSPH viscosity diffusion processes in vortex flows

Macia Lang, Fabricio; Sánchez Sánchez, Juan Miguel; Souto Iglesias, Antonio y 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. https://doi.org/10.1002/fld.2571.

Descripción

Título: WCSPH viscosity diffusion processes in vortex flows
Autor/es:
  • Macia Lang, Fabricio
  • Sánchez Sánchez, Juan Miguel
  • Souto Iglesias, Antonio
  • González Gutierrez, Leo Miguel
Tipo de Documento: Artículo
Título de Revista/Publicación: International Journal for Numerical Methods in Fluids
Fecha: Mayo 2012
Volumen: 69
Materias:
Palabras Clave Informales: WCSPH;particles;vortex;Lagrangian;viscous;Lamb–Ossen
Escuela: E.T.S.I. Navales (UPM)
Departamento: Enseñanzas Básicas de la Ingeniería Naval [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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

Más información

ID de Registro: 11781
Identificador DC: http://oa.upm.es/11781/
Identificador OAI: oai:oa.upm.es:11781
Identificador DOI: 10.1002/fld.2571
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1002/fld.2571/abstract
Depositado por: Memoria Investigacion
Depositado el: 13 Nov 2012 10:29
Ultima Modificación: 22 Sep 2014 10:51
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