A quasi-three-dimensional model for intra-stator transport of rotor wakes
Abstract
The time-resolved flowfield in a high thru-flow compressor stage has been studied using a higher frequency response angle probe and a newly developed time-resolved total temperature and pressure probe. The investigation revealed the presence of large gapwise nonuniformity (20C) in stagnation temperature at the stator exit. A quasi-three-dimensional wake transport model, modified from that developed by Kerrebrock and Mikolajczak, was used to investigate the transport of the wake fluid within the stator passage. The present model accounts for three-dimensional effect by including the radial velocity in the wake. In addition, the relative flow angle is not assumed to be uniform across the wake and the inviscid core. The model compares favorably with measurements taken at the stator exit plane. The loss associated with the recirculation of the rotor wake within the stator passage is also calculated.
- Publication:
-
Three Dimensional Flow Phenomena in Fluid Machinery
- Pub Date:
- 1985
- Bibcode:
- 1985tdfp.proc..103N
- Keywords:
-
- Blowdown Wind Tunnels;
- Compressor Rotors;
- Flow Distribution;
- Stators;
- Supersonic Wakes;
- Three Dimensional Flow;
- Three Dimensional Models;
- Inviscid Flow;
- Mach Number;
- Radial Flow;
- Unsteady Flow;
- Fluid Mechanics and Heat Transfer