Unsteady flow due to concentric rotation of eccentric rotating disks


Ersoy H.

MECCANICA, vol.38, no.3, pp.325-334, 2003 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 3
  • Publication Date: 2003
  • Doi Number: 10.1023/a:1023374214783
  • Title of Journal : MECCANICA
  • Page Numbers: pp.325-334

Abstract

While two parallel disks are initially rotating with the same angular velocity about non-coincident axes, the axes are suddenly made coincident. The development of the flow is examined until the fluid rotates as a rigid body in the steady-state. The velocity field and the shear stress components on the disks are found exactly by a Fourier series solution. Furthermore, a series solution that converges rapidly at small times is obtained with the aid of the Laplace transform technique.