Accession Number : AD0735646

Title :   Simulation of Viscous Hypersonic Flows in Wind Tunnels,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Galkin,V. S. ; Nikolaev,V. S.

Report Date : 23 NOV 1971

Pagination or Media Count : 16

Abstract : Analysis of problems involved in direct wind-tunnel simulation of natural interactions between a hypersonic viscous flow and a laminar boundary layer on a plate positioned at zero angle of attack is examined. Direct simulation implies the possibility of relating the experimental data directly to the natural conditions. Calculated data are given for the effects of individual similarity parameters on the lift and drag coefficients, and practical recommendations are included for relating the results of wind-tunnel experiments to natural situations.

Descriptors :   (*HYPERSONIC FLOW, MODEL TESTS), (*WIND TUNNEL MODELS, RELIABILITY), LAMINAR BOUNDARY LAYER, FLAT PLATE MODELS, SIMULATION, VISCOSITY, ANGLE OF ATTACK, AERODYNAMIC CHARACTERISTICS, USSR

Subject Categories : Aerodynamics
      Test Facilities, Equipment and Methods
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE