Non-linear development of rotating stall in an axial compressor at a near-critical flow rate
✍ Scribed by S.I. Chernyshenko
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 799 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0021-8928
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✦ Synopsis
The development of rotating stall (RS) at a flow rate close to the critical value at which rotating stall occurs is considered using a modified Moore--Greitzer model. Landau's equation is derived for the amplitude oftbe first mode. The theory is used to describe the experimental laboratory compressor used in the Massachusetts Institute of Technology to investigate rotating stall. It is established that this compressor is atypical in the sense that the nature of the excitation of rotating stall in it is, in a certain sense, intermediate between suberitical and supercritical, or, more precisely, an insignificant change in the compressor parameters, within the limits of experimental error, can lead to a change in the type of excitation.