An Investigation of the Drag Forces on a Shaft Rotating Concentrically in a Porous Cylinder with Fluid Injection or Suction
Abstract
The equations of motion for steady incompressible flow in an annulus with fluid removal or injection at the porous walls have been reduced to a pair of ordinary differential equations by Terrill. The solution of the related problem of a plane channel with a moving wall can be expressed in terms of the corresponding results for a stationary wall. That solution is obtained in the present work. The solution is used to determine the drag on the moving wall. Preliminary experimental results with an apparatus consisting of a porous outer cylinder and a solid rotating shaft indicate satisfactory agreement with the theoretical calculations for the case of fluid injection.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1972
- Accession Number
- AD0740832
Entities
People
- Bobby J. Gaines
Organizations
- University of Tennessee