The Effect of Rotor-Stator Axial Spacing on the Time-Variant Aerodynamic Response of a Compressor Stator.
Abstract
The overall objective of this experimental program was to quantify the effects of rotor-stator axial spacing on the fundamental time-variant aerodynamics relevant to forced response in turbomachinery. This was accomplished in a large-scale, low-speed, single-stage research compressor which permitted two rotor-stator axial spacing ratios representative of those found in advanced design compressors to be investigated. At each value of the axial spacing ratio, the aerodynamically induced fluctuating surface pressure distributions on the downstream vane row, with the primary source of excitation being the upstream rotor wakes, were measured over a wide range of compressor operating conditions. The velocity fluctuations created by the passage of the rotor blades were measured in the non-rotating coordinate system. Data obtained described the variation of the rotor wake with both loading and axial distance from the rotor as parameters. This data also served as a reference in the analysis of the resulting time-variant pressure signals on the vane surfaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1977
- Accession Number
- ADA050648
Entities
People
- Robert L. Jay
- Sanford Fleeter
- William A. Bennett
Organizations
- General Motors