Lab Home | Phone | Search
	Center for Nonlinear Studies
	Home  ▶ People   Current   Affiliates   Alumni   Visitors   Students  ▶ Research   ICAM-LANL  ▶ Publications   2007   2006   2005   2004   2003   2002   2001   2000   <1999  ▶ Conferences   Workshops   Sponsorship  ▶ Talks   Colloquia   Seminars   Quantum Lunch   CMS Colloquia   Archive   Kac Lectures   Dist. Quant. Lecture   Ulam Scholar   Colloquia     Jobs  ▶ Students   Summer Research   Graduate Positions  ▶ Visitors   Description  ▶ Services   General   PD Travel Request     History of CNLS     Maps, Directions   CNLS Office   T-Division   LANL				Tuesday, January 25, 201111:00 AM - 12:00 PMCNLS Conference Room (TA-3, Bldg 1690) Seminar Monotone finite volume discretization of the diffusion and convection-diffusion equations on polyhedral meshes Prof. Yuri VassilevskiInstitute of Numerical Mathematics, Russian Academy of Sciences We consider the cell-centered finite volume discretization of the steady diffusion and convection-diffusion equations [1,2]. The diffusion tensor may be heterogeneous, full and essentially anisotropic. The convection-diffusion operator may have the dominated convection part. The conformal computational mesh is assumed to consist of convex polyhedral cells. The cornerstone of the method is the nonlinear two-point discretization of diffusion and advection fluxes derived on faces of mesh cells. The proposed finite volume method is monotone, i.e. it preserves non-negativity of the differential solution. The method is the 3D extension of the 2D finite volume discretizations Host: Konstantin Lipnikov, T-5, x 71719, Mikhail Shashkov. shashkov@lanl.gov, 667-4400