Accession Number:

AD0668110

Title:

SLIPPING STALL,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1967-08-18

Pagination or Media Count:

17.0

Abstract:

Phenomena are described of a slipping blade-tip stall in an axial 100-reaction compressor. The slipping stall is defined as a series of adjacent local stalls that arise when dPd alpha becomes negative, where P is the lift force and alpha is the angle of attack. A gas leakage scheme in the stalling zone is considered, and formulas that describe the stall are developed. It is found that 1 The rotating slipping stall is a self-oscillatory process whose energy is taken from the compressed gas 2 The stall is caused by a sudden change in gas-flow conditions at the runner blades 3 The analysis presented in the article permits evaluating, in the first approximation, the effect of runner rpm upon the speed of stalling and upon the flow-pulsation amplitude with a constant throttle resistance. Author

Subject Categories:

  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE