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

Autor:	Bermejo Bermejo, Rodolfo, Galán del Sastre, Pedro, Saavedra Lago, Laura
Rok vydání:	2014
Předmět:	Physics::Fluid Dynamics Matemáticas Ingeniería Industrial Mathematics::Numerical Analysis
Zdroj:	International Journal of Numerical Analysis and Modeling, ISSN 1705-5105, 2014, Vol. 11, No. 2 Archivo Digital UPM Universidad Politécnica de Madrid
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::fd6bc32ed33082a716ad22e2b654a090 https://oa.upm.es/40045/ Zobrazit plný text záznamu