Accession Number : AD0725066

Title :   A Rearward Facing Step in a Hypersonic Stream,

Corporate Author : AEROSPACE RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Shang,Joseph J. S. ; Hankey,Wilbur L. ; Dwoyer,Douglas L.

Report Date : FEB 1971

Pagination or Media Count : 41

Abstract : An experimental investigation was conducted for hypersonic flow over a rearward-facing step. The inviscid dominated region around this configuration was investigated by the method of rotational characteristics. The recirculation region was described by a primary expansion angle for the dividing streamline. The calculated results were compared with the experimental measurements as the critical verification. This comparison exhibited a favorable substantiation for the present analysis. Static pressure distributions on the model surface and impact pressure surveys were presented along with visual observations. A study of the three-dimensional effects on the finite span 'two-dimensional' model is also presented. (Author)

Descriptors :   (*BOUNDARY LAYER, ATTACHMENT), (*RAREFIED GAS DYNAMICS, *FLOW SEPARATION), HYPERSONIC CHARACTERISTICS, AERODYNAMIC CONFIGURATIONS, MATHEMATICAL MODELS, CORRELATION TECHNIQUES, PRESSURE, WIND TUNNEL MODELS, THREE DIMENSIONAL FLOW, TWO DIMENSIONAL FLOW, SHEAR STRESSES, ROTATION

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE