Accession Number : AD0714075

Title :   Hypersonic Viscous Interaction on Curved Surfaces,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Stollery,John L.

Report Date : JUL 1970

Pagination or Media Count : 41

Abstract : Cheng's analysis of strong viscous interaction between a laminar boundary layer growing over a flat plate and the external hypersonic flow field is extended to cover curved surfaces. It is demonstrated that the solutions for concave surfaces are oscillatory and physically unrealistic. The reason for this behavior is that the Busemann term in the Newton-Busemann pressure law used in Cheng's analysis over-corrects for centrifugal effects. The removal of the Busemann term or the substitution of the tangent-wedge pressure law results in a more realistic analysis which can cover both strong and weak viscous interaction over a variety of two-dimensional shapes. A number of examples are included together with comparative experimental data. (Author)

Descriptors :   (*HYPERSONIC FLOW, *CURVED PROFILES), VISCOSITY, INTERACTIONS, SURFACES, MATHEMATICAL ANALYSIS

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE