Stability of compressible boundary layers over a smooth backward-facing stepAn investigation is conducted into the determination of the credibility of interacting boundary layers in predicting compressible subsonic flows over smooth surface imperfections. The case of smooth backward-facing steps is considered. The predicted mean flows are compared with those obtained using a Navier-Stokes solver. Moreover, the linear 2-D compressible stability characteristics of both mean flows are compared. The results show that the interacting boundary-layer formulation produces accurate mean flows that yield accurate linear stability characteristics, such as growth rates and amplification factors.
Document ID
19900051554
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ragab, S. A. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Nayfeh, A. H. (Virginia Polytechnic Institute and State University Blacksburg, United States)
Krishna, R. C. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)