Note on an Axially Symmetric Expansion behind a Body in Hypersonic Flow.

by R. E. Meyer

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One phase of a continuing study of the flow characteristics in the trail behind a body moving at hypersonic speed in the atmosphere. The flow near the rim of the flat base of a body of revolution is studied to establish the effect that axial symmetry has on the expansion process occurring there. It is shown that this effect decreases markedly with increasing flight Mach number. The pressure gradient and streamline curvature at the rim of the base are calculated, since they would be required for any detailed computations concerning the back pressure

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