Accession Number : AD0660111

Title :   SUPERSONIC SEPARATED FLOW DOWNSTREAM OF A BACKWARD FACING STEP.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY DIV OF AERONAUTICAL SCIENCES

Personal Author(s) : Crawford,Donald R.

Report Date : MAY 1967

Pagination or Media Count : 91

Abstract : The method of integral relations is applied to the study of the viscous separated flow field downstream of a backward facing step in laminar supersonic flow. The boundary layer equations are reduced to a set of coupled ordinary differential equations in a formulation which incorporates a two parameter velocity profile. The neighborhood of the corner and the reattachment point are examined in detail, taking into account the proper interaction between the viscous and inviscid flow. The complete flow field in these regions is found from the analyses of the limiting forms of the equations. In particular, it is found that the pressure gradient and thickness of the boundary layer at the reattachment point are related and cannot be arbitrarily specified. (Author)

Descriptors :   (*SUPERSONIC FLOW, *FLOW SEPARATION), FLOW FIELDS, LAMINAR FLOW, LAMINAR BOUNDARY LAYER, SUPERSONIC CHARACTERISTICS, BASE FLOW, INTEGRAL EQUATIONS

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE