Rheologica Acta

, Volume 8, Issue 4, pp 465–471

The oscillation of a spheroid along its axis in a non-Newtonian fluid


  • P. L. Bhatnagar
    • Department of Applied MathematicsIndian Institute of Science
  • Renuka Ravindran
    • Department of Applied MathematicsIndian Institute of Science

DOI: 10.1007/BF01976230

Cite this article as:
Bhatnagar, P.L. & Ravindran, R. Rheol Acta (1969) 8: 465. doi:10.1007/BF01976230


The present paper investigates the nature of the fluid flow when a spheroid is suspended in an infinitely extending elastico-viscous fluid defined by the constitutive equations given byOldroyd orRivlin andEricksen, and is made to perform small amplitude oscillations along its axis. The solution of the vector wave equation is expressed in terms of the solution of the corresponding scalar wave equation, without the use ofHeine's function or spheroidal wave functions. Two special cases (i) a sphere and (ii) a spheroid of small ellipticity, are studied in detail.

Copyright information

© Dr. Dietrich Steinkopff Verlag 1969