Investigation of a two-step nozzle in the Langley 11-inch hypersonic tunnel

Charles Herbert McLellan, Thomas W. Williams, Mitchel H. Bertram
naca-tn-2171
Sep 1950


Flow surveys have been made in the first of several nozzles to be investigated in the Langley 11-inch hypersonic tunnel. The nozzle was designed by the method of characteristics for a Mach number of 6.98. Two 2-dimensional steps were used: the first step expanded the air in the horizontal plane to a Mach number of 4.36 and the second in the vertical plane to a Mach number of 6.98.

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