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A preliminary investigation of large-scale organized motions in a supersonic turbulent boundary layer on a curved surfaceAn experimental investigation concentrating on the change in the large-scale organized motions of a supersonic turbulent boundary layer subjected to a short region of concave surface curvature is presented. Two flows were studied, a relatively weak and a relatively strong perturbation. In both flows the freestream Mach number was 2.89 and the Reynolds number based on momentum thickness was 81,900. Hot-wire anemometry and schlieren photography provided the principle tools for this investigation. Hot-wire data were analyzed using spectral and correlation methods and conditional sampling techniques. Changes in structure angle and results of conditionally sampled velocity signals are discussed. The strong perturbation is found to increase the structure angle, and in both flows the length scales of the organized motions are altered.
Document ID
19870055086
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Donovan, J. F.
(Princeton Univ. NJ, United States)
Smits, A. J.
(Princeton University NJ, United States)
Date Acquired
August 13, 2013
Publication Date
June 1, 1987
Subject Category
Aerodynamics
Report/Patent Number
AIAA PAPER 87-1285
Accession Number
87A42360
Funding Number(s)
CONTRACT_GRANT: NAG1-545
Distribution Limits
Public
Copyright
Other

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