Longitudinal oscillations of a sphere in a micropolar fluid

Authors

K. S. Sran, New Jersey Institute of Technology

Document Type

Article

Publication Date

3-1-1990

Abstract

A general expression for the force exerted on a sphere excuting longitudinal oscillations, with small amplitude, in an incompressible micropolar fluid is obtained. This is accomplished by using direct integral consequences of the full field and the constitutive equations written in cartesian coordinates. The results which are independent of any boundary conditions are then applied to calculate the hydrodynamic force experienced by a sphere moving with rectilinear oscillating velocity u(t)=(uoe^iλt, 0, 0) in an unbounded micropolar fluid. As a special case, a general expression for the drag in a similar viscous flow is also derived. © 1990 Springer-Verlag.

Identifier

0025564369 (Scopus)

Publication Title

Acta Mechanica

External Full Text Location

https://doi.org/10.1007/BF01213543

e-ISSN

16196937

ISSN

00015970

First Page

71

Last Page

78

Issue

1-2

Volume

85

Recommended Citation

Sran, K. S., "Longitudinal oscillations of a sphere in a micropolar fluid" (1990). Faculty Publications. 17739.
https://digitalcommons.njit.edu/fac_pubs/17739