Unsteady flow due to concentric rotation of eccentric rotating disks


Ersoy H. V.

MECCANICA, vol.38, pp.325-334, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38
  • Publication Date: 2003
  • Doi Number: 10.1023/a:1023374214783
  • Journal Name: MECCANICA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.325-334
  • Yıldız Technical University Affiliated: No

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.