By using the results of general similarity, the problem of modeling the hypersonic flow about a reentry cone is reviewed. The techniques developed are applied to a specific proposed ballistic range experiment. (Author)
An experimental study was performed of the unsteady processes in the starting period of a supersonic Ludwieg tube, a device which operates like an intermittent supersonic wind tunnel. A quick opening diaphragm located downstream of the nozzle initiates the flow. Pressure and density measurements are made in a variety of ways in Mach number 1.67 and 3.0 nozzles. For the starting conditions treated, supersonic flow is established in the nozzle ...
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