Accession Number : AD0714074

Title :   Hypersonic Viscous Interaction-An Experimental Investigation of the Flow over Flat Plates at Incidence and Around an Expansion Corner,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Stollery,John L.

Report Date : JUL 1970

Pagination or Media Count : 48

Abstract : Flat plate and expansion corner models were tested over a range of positive and negative incidences in a continuous hypersonic wind tunnel operating at M = 14.8. Surface pressure distributions were obtained for comparison with the viscous interaction theories of Cheng and Sullivan. Since these theories assume 'local flat plate similarity' for the boundary layer flow, pitot pressure profiles were measured at various stations along the plates. It often proved difficult to define the boundary layer edge within the shock layer and total temperature profiles would greatly assist in interpreting the data. Schlieren pictures and oil flow visualization gave good indications of the extent of end effects, the onset of separation caused by the trailing edge shock wave, and tunnel blocking at high model incidence. The tests have provided some new hypersonic experimental data under conditions where both strong viscous interaction and incidence effects are important. (Author)

Descriptors :   (*HYPERSONIC FLOW, FLAT PLATE MODELS), INTERACTIONS, VISCOSITY, CURVED PROFILES, EXPERIMENTAL DATA, BOUNDARY LAYER, FLOW VISUALIZATION

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE