Accession Number : ADA194057

Title :   A Numerical Study of the Test Time in a Hypersonic Shock Tunnel.

Descriptive Note : Student rept.,

Corporate Author : AIR COMMAND AND STAFF COLL MAXWELL AFB AL

Personal Author(s) : Dillon, Robert E , Jr

PDF Url : ADA194057

Report Date : Apr 1988

Pagination or Media Count : 44

Abstract : A numerical study was made of the test time in a hypersonic shock tunnel for Mach 10 flow. Harten's total variation diminishing (TVD) scheme was used to simulate the entire shock tunnel operation from diaphragm rupture to disruption of the flow in the nozzle. The code was able to model the main features of unsteady flow in a shock tube to include the shock wave and contact surface intersections. Results were obtained that predict the steady flow duration time for stagnation temperatures of 1200F, 2700F, and 6900F. Both air and helium were used as driver gases with air as the test gas.

Descriptors :   *SHOCK TUNNELS, *SHOCK WAVES, *HYPERSONIC FLOW, GASES, HELIUM, HYPERSONIC WIND TUNNELS, NUMERICAL ANALYSIS, OPERATION, RUPTURE, SHOCK TUBES, STEADY FLOW, SURFACES, TIME, UNSTEADY FLOW, AIR FLOW, COMPRESSIBLE FLOW, STAGNATION TEMPERATURE, MATHEMATICAL MODELS, MATHEMATICAL PREDICTION, TEST METHODS

Subject Categories : Fluid Mechanics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE