THE NUMERICAL-SOLUTION OF THE LAMINAR-FLOW IN A CONSTRICTED CHANNEL AT MODERATELY HIGH REYNOLDS-NUMBER USING NEWTON ITERATION

被引：22

作者：

HUNT, R

机构：

[1] Department of Mathematics, University of Strathclyde, Glasgow

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 1990年 / 11卷 / 02期

关键词：

Artificial viscosity; Laminar flow; Newton iteration;

D O I：

10.1002/fld.1650110209

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 [计算机应用技术]; 0835 [软件工程];

摘要：

The numerical solution of the flow in a stepped channel constricted to half its width has been obtained for Reynolds numbers up to 2000 using Newton's iteration to solve the ensuing algebraic system. In order to avoid high‐frequency errors, a locally fine grid is effected near the corner by transformation of the independent variables. The results predict a downstream recirculation region, observed in experiments but not found in earlier numerical calculations. The inclusion of the Dennis–Hudson upwinding, added for stability in SOR methods, whilst giving the same characteristics of the flow, is less accurate by at least an order of magnitude. Copyright © 1990 John Wiley & Sons, Ltd

引用

页码：247 / 259

页数：13

共 7 条

[1]

BRAMLEY JS, 1984, COMPUT FLUIDS, V12, P339, DOI 10.1016/0045-7930(84)90014-8

[2]

BRAMLEY JS, 1988, 3 STRATH U DEP MATH

[3]

STEADY FLOW THROUGH A CHANNEL WITH A SYMMETRICAL CONSTRICTION IN THE FORM OF A STEP [J].