Experimental Investigations of Stall Propagation in Axial-Flow Compressors

Author: Iura, Toru

Year: 1953

Degree: Dissertation (Ph.D.)

Advisor: Rannie, W. Duncan

Committee Member: Unknown, Unknown

Option: Mechanical Engineering; Physics

DOI: 10.7907/7K4C-DA90

Abstract

Hot-wire anemometer measurements of the velocity fluctuations in stalled operation of an axial-flow compressor have demonstrated that stalling occurs as more or less well-defined regions of retarded flow which rotate in the compressor annulus without changing shape. These regions propagate in the direction of the blade rotation with a speed proportional to, but of smaller magnitude than, the rotor speed. Two principal types of propagating stall were observed. The one with the stalled region or regions extending over part of the blade height was defined as partial stall, and the other with a single stalled region over the entire blade height was defined as full stall.

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