Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2000.11b
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- Pages.416-421
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- 2000
Numerical Analysis of Stall Propagation in Linear Cascade
선형 익렬에서의 실속 전파에 관한 수치적 해석
Abstract
The performance of gas turbine engines is affected by instabilities, like as rotating stall and/or surge. Rotating Stall is a transient intermediate stage between normal flow and complete flow breakdown leading to engine surge. Rotating Stall is associated with large amplitude nonaxisymmetric flow variations rotating around the compressor annulus. This paper presents the evolutions of stall propagation in a compressor cascade by numerical analysis. The flow phenomena due to stall cells and propagation speed are examined using 2 dimensional Navier - Stokes equations.