Variable Eddington Factor Method for the S N Equations with Lumped Discontinuous Galerkin Spatial Discretization Coupled to a Drift-Diffusion Acceleration Equation with Mixed Finite-Element Discretization.

Autor:	Olivier, Samuel S., Morel, Jim E.
Předmět:	SOLID solutions MOLECULAR vibration PHYSICAL & theoretical chemistry HEAT equation BIOLOGICAL transport
Zdroj:	Journal of Computational & Theoretical Transport; 2018, Vol. 46 Issue 6/7, p480-496, 17p
Abstrakt:	We apply the Variable Eddington Factor (VEF) acceleration method to the 1-D, one-group SNequations with a Lumped Linear Discontinuous Galerkin (LLDG) spatial discretization in conjunction with a drift-diffusion acceleration equation discretized with the constant-linear Mixed Finite-Element Method (MFEM). While the VEF method is quite old, its application to this particular combination of SNand drift-diffusion discretizations is new. In addition to demonstrating the basic properties of our method, we investigate slope reconstruction techniques for improving the consistency between the SNand drift-diffusion solutions. [ABSTRACT FROM PUBLISHER]
Databáze:	Complementary Index
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