Laminar compressible flow between close rotating disks - An asymptotic and numerical study
Abstract
The compressible flow between rotating disks is investigated by means of an asymptotic analysis accompanied by an exact solution of the Navier-Stokes equations. In this flow, the pronounced growth of the density in the radial direction makes possible a continuous transition from 'merged' boundary layers (near the axis of rotation) to 'separate' boundary layers near the periphery) in the same flow field. It is noted that when radial mass flux ('leakage') is present, this feature may cause large perturbations in the radial pressure distribution near the axis, resulting in the inversion of the radial pressure gradient. Good agreement between the numerical and the asymptotic solution is obtained.
- Publication:
-
Computers and Fluids
- Pub Date:
- 1983
- Bibcode:
- 1983CF.....11..145I
- Keywords:
-
- Compressible Flow;
- Computational Fluid Dynamics;
- Laminar Flow;
- Navier-Stokes Equation;
- Rotating Disks;
- Asymptotic Methods;
- Boundary Layer Flow;
- Equations Of Motion;
- Finite Difference Theory;
- Flow Distribution;
- Pressure Gradients;
- Fluid Mechanics and Heat Transfer