Boundary layer receptivity phenomena in three-dimensional and high-speed boundary layersThe process by which the boundary layer internalizes the environmental disturbances in the form of instability waves is known as the boundary-layer receptivity. The paper discusses the importance of receptivity in transition research. The receptivity scenario for three-dimensional and high-speed boundary layers is examined. It is found that, while receptivity mechanisms present in the low-speed case are also operative in these complex flows, certain uniquely 'compressible' receptivity mechanisms may come into play as well. Both numerical, and where convenient, asymptotic procedures are utilized to develop quantitative predictions of the localized generation of a variety of instability types (Tollmien-Schlichting, inflectional, higher modes, crossflow vortices) in boundary layer flows relevant to the National Aero-Space Plane (NASP).
Document ID
19910038259
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Choudhari, Meelan (High Technology Corp. Hampton, VA, United States)
Streett, Craig L. (NASA Langley Research Center Hampton, VA, United States)