Accession Number : AD0483832

Title :   COMPARISON OF EQUILIBRIUM AND FROZEN FLOW PROPERTIES OF AIR IN A HYPERSONIC WIND TUNNEL.

Descriptive Note : Final rept.,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Moore, Arthur F.

Report Date : 18 JUN 1965

Pagination or Media Count : 51

Abstract : A hypersonic true temperature wind tunnel using air as the working gas at supply temperatures from 2000 K to 8000 K, and supply pressures of 5 to 150 atmospheres, is analyzed to show the effects of nonequilibrium flow on the sizing of the tunnel components. It was found that nonequilibrium flow requires the use of larger nozzles and more pumping capacity than is needed for equivlanet equilibrium conditions. The methods used and the results obtained are described in some detail. (Author)

Descriptors :   *HYPERSONIC WIND TUNNELS), (*FLUID DYNAMICS, GAS FLOW, NONEQUILIBRIUM FLOW, FROZEN EQUILIBRIUM FLOW, WIND TUNNEL NOZZLES, HYPERSONIC NOZZLES, HIGH TEMPERATURE, HIGH PRESSURE, SKIN FRICTION, HYPERSONIC DIFFUSERS, EQUATIONS, ENERGY, MATHEMATICAL ANALYSIS, BOUNDARY LAYER, THERMODYNAMICS.

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE