Dimension determination of precursive stall events in a single stage high speed compressor
- NASA Lewis Research Center, Advanced Controls Technology and System Dynamics Branches, Cleveland, Ohio 44135 (United States)
- Departments of Chemical and Electrical Engineering, The University of Akron, Akron, Ohio 44325 (United States)
This paper presents a study of the dynamics for a single-stage, axial-flow, high speed compressor core, specifically, the NASA Lewis rotor stage 37. Due to the overall blading design for this advanced core compressor, each stage has considerable tip loading and higher speed than most compressor designs, thus, the compressor operates closer to the stall margin. The onset of rotating stall is explained as bifurcations in the dynamics of axial compressors. Data taken from the compressor during a rotating stall event is analyzed. Through the use of a box-assisted correlation dimension methodology, the attractor dimension is determined during the bifurcations leading to rotating stall. The intent of this study is to examine the behavior of precursive stall events so as to predict the entrance into rotating stall. This information may provide a better means to identify, avoid or control the undersireable event of rotating stall formation in high speed compressor cores. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 401096
- Report Number(s):
- CONF-950730-; ISSN 0094-243X; TRN: 96:029475
- Journal Information:
- AIP Conference Proceedings, Vol. 375, Issue 1; Conference: 3. technical conference on nonlinear dynamics (chaos) and full spectrum processing, Mystic, CT (United States), 10-13 Jul 1995; Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
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