TRANSLATION OF A SPHERE IN A ROTATING VISCOUS-FLUID - A NUMERICAL STUDY

被引：10
|
作者：
RAO, CVR
SEKHAR, TVS
机构：
[1] Department of Mathematics, Indian Institute of Technology, Madras
来源：
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 1995年 / 20卷 / 11期
关键词：
ROTATING FLUID; SUPPRESSION; SEPARATION; SLUG; FINITE DIFFERENCE METHOD;
D O I：
10.1002/fld.1650201105
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The translation of a sphere moving along the axis of a rotating viscous fluid is studied by the finite difference method at moderate Reynolds (up to R = 500) and Taylor (up to T = 100) numbers. Suppression of the separation is observed with increasing rotation parameter T. The drag coefficient is also presented. It is observed that the drag coefficient is less than that with no rotation in the range 0 < N < 0.7, where N = 2T/R is the inverse Rossby ;lumber. The same phenomenon was observed experimentally by Maxworthy in the range 0 < N < 0.75 +/- 0.03.
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页码：1253 / 1262
页数：10
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