Stability and Transition in Compressible Attachment-Line Boundary-Layer Flow

952041

09/01/1995

Event
Aerospace Technology Conference and Exposition
Authors Abstract
Content
Linear stability of the three-dimensional compressible attachment-line boundary-layer flow on a 60° -sweep infinite-span cylinder in a Mach 3.5 free-stream is investigated by the two-dimensional (2D) eigenvalue approach. Results of this study indicate that the supersonic attachment-line boundary layer is subjected to the oblique Tollmien-Schlichting instability, and the nonparallel effect is highly destabilizing. The critical Reynolds number based upon momentum thickness is found to be about 125, in contrast with the value of 235 for incompressible flow. The frequencies of unstable travelling modes are on the order of 100KHz for the free-stream Reynolds numbers considered in the study.
Meta TagsDetails
DOI
https://doi.org/10.4271/952041
Pages
11
Citation
Lin, R., and Malik, M., "Stability and Transition in Compressible Attachment-Line Boundary-Layer Flow," SAE Technical Paper 952041, 1995, https://doi.org/10.4271/952041.
Additional Details
Publisher
Published
Sep 1, 1995
Product Code
952041
Content Type
Technical Paper
Language
English