Modeling subgrid viscosity for advection-diffusion problems

被引：33

作者：

Brezzi, F

Houston, P

Marini, D

Süli, E

机构：

[1] Dipartimento Matemat, I-27100 Pavia, Italy

[2] CNR, Ist Anal Numer, I-27100 Pavia, Italy

[3] Univ Leicester, Dept Math & Comp Sci, Leicester LE1 7RH, Leics, England

[4] Univ Oxford, Comp Lab, Oxford OX1 3QD, England

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2000年 / 190卷 / 13-14期

关键词：

D O I：

10.1016/S0045-7825(00)00179-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyse the effect of the subgrid viscosity on a finite element discretisation, with piecewise linear elements, of a linear advection-diffusion scalar equation. We point out the importance of a proper tune-up of the viscosity coefficient, and propose a heuristic method for obtaining reasonable values for it. The extension to more general problems is then hinted in the last section. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1601 / 1610

页数：10

共 19 条

[1]

[Anonymous], E W J NUMER MATH

[2]

[Anonymous], 1982, Finite elements in fluids

[3] CHOOSING BUBBLES FOR ADVECTION-DIFFUSION PROBLEMS [J].