MECHANISM INVESTIGATION ON CASING TREATMENT FOR RESTRAINING ROTATING STALL BY MEANS OF WAVELET TRANSFORM
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MECHANISM INVESTIGATION ON CASING TREATMENT FOR RESTRAINING ROTATING STALL BY MEANS OF WAVELET TRANSFORM
Vol. 13, Issue 2, (1998)
作者机构:
北京航空航天大学
作者简介:
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Published:1998
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Zhang Yong, Wang Guanghua, Lu Yajun. MECHANISM INVESTIGATION ON CASING TREATMENT FOR RESTRAINING ROTATING STALL BY MEANS OF WAVELET TRANSFORM[J]. 1998, 13(2).
DOI:
Zhang Yong, Wang Guanghua, Lu Yajun. MECHANISM INVESTIGATION ON CASING TREATMENT FOR RESTRAINING ROTATING STALL BY MEANS OF WAVELET TRANSFORM[J]. 1998, 13(2).DOI:
MECHANISM INVESTIGATION ON CASING TREATMENT FOR RESTRAINING ROTATING STALL BY MEANS OF WAVELET TRANSFORM
is applied to analysis of compressor rotating stall signals.With the Morlet wavelet transform
the time-evolution of the unsteady signals during the stall inception and the local behavior in the casing treatment plenum are investigated.By comparison with structure characteristics of the coherent waves in the casing without treatment
it is shown that the casing treatment do has different influences on pressure impulse signals.A mechanism for restraining perturbations of stall inception via casing treatment is proposed.