A subgrid viscosity Lagrance-Galerkin method for convection-diffusion problems

Bermejo Bermejo, Rodolfo and Galán del Sastre, Pedro and Saavedra Lago, Laura (2014). A subgrid viscosity Lagrance-Galerkin method for convection-diffusion problems. "International Journal of Numerical Analysis and Modeling", v. 11 (n. 2); pp. 288-302. ISSN 1705-5105.

Description

Title: A subgrid viscosity Lagrance-Galerkin method for convection-diffusion problems
Author/s:
  • Bermejo Bermejo, Rodolfo
  • Galán del Sastre, Pedro
  • Saavedra Lago, Laura
Item Type: Article
Título de Revista/Publicación: International Journal of Numerical Analysis and Modeling
Date: 2014
ISSN: 1705-5105
Volume: 11
Subjects:
Freetext Keywords: subgrid viscosity, Lagrange-Galerkin, finite elements, convection-diffusion-reaction problems
Faculty: E.T.S.I. Industriales (UPM)
Department: Matemática Aplicada a la Ingeniería Industrial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We present and analyze a subgrid viscosity Lagrange-Galerk in method that combines the subgrid eddy viscosity method proposed in W. Layton, A connection between subgrid scale eddy viscosity and mixed methods. Appl. Math. Comp., 133: 14 7-157, 2002, and a conventional Lagrange-Galerkin method in the framework of P1⊕ cubic bubble finite elements. This results in an efficient and easy to implement stabilized method for convection dominated convection diffusion reaction problems. Numerical experiments support the numerical analysis results and show that the new method is more accurate than the conventional Lagrange-Galerkin one.

More information

Item ID: 40045
DC Identifier: http://oa.upm.es/40045/
OAI Identifier: oai:oa.upm.es:40045
Official URL: http://www.math.ualberta.ca/ijnam/Volume-11-2014/No-2-14/2014-02-03.pdf
Deposited by: Memoria Investigacion
Deposited on: 05 May 2016 14:49
Last Modified: 26 Jul 2019 13:57
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