Accession Number:
AD0733974
Title:
A Numerical Study of Separating Supersonic Laminar Boundary-Layers,
Descriptive Note:
Corporate Author:
VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING MECHANICS
Personal Author(s):
Report Date:
1971-09-27
Pagination or Media Count:
73.0
Abstract:
A numerical study has been made of the nature of the solution to the supersonic boundary-layer equations when the flow separates from the surface. To this end, implicit finite difference solutions t the governing equations are obtained for linearly and quadratically retarded flows over flat plates for a Mach number range of 2 to 15. Both extremely hot and cold wall conditions are considered. Also, solutions for flow on a compression ramp are obtained with and without including the boundary layers free interaction with the local freestream. The results of this study indicate that non-interacting flows are singular at separation and that free interaction effects reduces singularity. An alternate means of numerically smearing out the singularity and proceeding past separation is also presented.
Descriptors:
Subject Categories:
- Fluid Mechanics