A NEW SCHEME FOR VORTICITY COMPUTATIONS NEAR A SHARP CORNER

被引：6

作者：

MA, H ^{[1
]}

RUTH, DW ^{[1
]}

机构：

[1] UNIV MANITOBA,DEPT MECH & IND ENGN,WINNIPEG R3T 2N2,MANITOBA,CANADA

来源：

COMPUTERS & FLUIDS | 1994年 / 23卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0045-7930(94)90024-8

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The numerical method for treating the vorticity singularity of incompressible viscous flow around a re-entrant sharp corner is discussed. Based on comparisons of the ad hoc methods and the Moffatt expansion method, a new scheme, the vorticity-circulation method, is developed for contracting flow which is characterized by local flow acceleration and separation. The scheme is applied to the flow in a sudden contraction for a range of Reynolds numbers. The computational results are compared with published experimental data and other numerical methods.

引用

页码：23 / 38

页数：16

共 20 条

[1]

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

[2]

Chien J. C., 1977, Computers & Fluids, V5, P15, DOI 10.1016/0045-7930(77)90003-2

[3]

CHIEN JC, 1977, AEDCTR7773 REP

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

DENNIS, SCR ;

SMITH, FT .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1980, 372 (1750) :393-414

[5]

DURST F, 1985, COMPUT FLUIDS, V4, P15

[6] NUMERICAL STUDIES OF STEADY VISCOUS INCOMPRESSIBLE FLOW IN A CHANNEL WITH A STEP [J].

GREENSPAN, D .

JOURNAL OF ENGINEERING MATHEMATICS, 1969, 3 (01) :21-+

[7]

GUPTA MM, 1981, COMPUT FLUIDS, V4, P379

[8]

HOLSTEIN H, 1982, NUMERICAL METHODS FL, P341

[9]

KUWAGUTI M, 1965, MRC TSR574 MATH RES

[10]

Minkowycz W, 1988, HDB NUMERICAL HEAT T

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