THE FORCE ON A BUBBLE, DROP, OR PARTICLE IN ARBITRARY TIME-DEPENDENT MOTION AT SMALL REYNOLDS-NUMBER

被引：66

作者：

LOVALENTI, PM

BRADY, JF

机构：

[1] Department of Chemical Engineering 210-41, California Institute of Technology, Pasadena

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 09期

关键词：

D O I：

10.1063/1.858550

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The hydrodynamic force on a body that undergoes translational acceleration in an unbounded fluid at low Reynolds number is considered. The results extend the prior analysis of Lovalenti and Brady [to appear in J. Fluid Mech. (1993)] for rigid particles to drops and bubbles. Similar behavior is shown in that, with the inclusion of convective inertia, the long-time temporal decay of the force (or the approach to steady state) at finite Reynolds number is faster than the t-1/2 predicted by the unsteady Stokes equations.

引用

页码：2104 / 2116

页数：13

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