The structure of tip clearance flow in axial flow compressors
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Aerospace Engineering
Detailed measurements of the flow field in the tip region of an axial flow compressor rotor were carried out using a rotating five-hole probe. The axial, tangential, and radial components of relative velocity, as well as the static and stagnation pressures, were obtained at two axial locations, one at the rotor trailing edge, the other downstream of the rotor. The measurements were taken up to about 26 percent of the blade span from the tip region, which involves the interaction of the tip leakage flow, the annulus wall boundary layer and the blade wake. The experimental data show that the leakage jet does not roll up into a vortex. The leakage jet exiting from the tip gap is of high velocity and mixes quickly with the mainstream, producing intense shearing and flow separation. There are substantial differences in the structure of tip clearance observed in cascades and rotors.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 103640
- Journal Information:
- Journal of Turbomachinery, Journal Name: Journal of Turbomachinery Journal Issue: 3 Vol. 117; ISSN JOTUEI; ISSN 0889-504X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of tip-clearance flow in a multistage, axial flow compressor
Investigation of the tip clearance flow inside and at the exit of a compressor rotor passage-part II: turbulence properties
Investigation of the tip clearance flow inside and at the exit of a compressor rotor passage-part I: mean velocity field
Journal Article
·
Sun Mar 31 23:00:00 EST 1996
· Journal of Turbomachinery
·
OSTI ID:250806
Investigation of the tip clearance flow inside and at the exit of a compressor rotor passage-part II: turbulence properties
Journal Article
·
Fri Dec 31 23:00:00 EST 1982
· J. Eng. Power; (United States)
·
OSTI ID:6055831
Investigation of the tip clearance flow inside and at the exit of a compressor rotor passage-part I: mean velocity field
Journal Article
·
Fri Dec 31 23:00:00 EST 1982
· J. Eng. Power; (United States)
·
OSTI ID:6224995