Accession Number : AD0862063

Title :   The Hypersonic Boundary Layer on a Wedge with Uniform Mass Addition and Viscous Interaction,

Descriptive Note : Rept. for Jan-Oct 68,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : King, William S. ; Varwig, Robert L.

Report Date : 31 JUL 1969

Pagination or Media Count : 30

Abstract : The effects of uniform surface blowing on the hypersonic boundary layer with viscous interaction are investigated analytically and experimentally. For strong and moderate viscous interaction, the heat transfer on a flat plate and a slender wedge is calculated by use of the local similarity technique to solve the boundary layer equations and the tangent wedge approximation to determine the inviscid pressure. The experiments are conducted at Mach numbers of 16 and 20, at unit Reynolds numbers of 2.3 and 130,000/ft, and at the cold wall condition. The analytical and experimental results are in good agreement. For moderate blowing, it is found that the effects of viscous interaction dominate the flow when the interaction is strong and that the effects of blowing become more important as the strength of the viscous interaction decreases. (Author)

Descriptors :   (*REENTRY VEHICLES, HYPERSONIC CHARACTERISTICS), (*BOUNDARY LAYER, ABLATION), WEDGES, MASS TRANSFER, INTERACTIONS, SURFACE PROPERTIES, VISCOSITY, HEAT TRANSFER, FLAT PLATE MODELS, PRESSURE, REYNOLDS NUMBER.

Subject Categories : Guided Missile Reentry Vehicles
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE