Journal of Fluid Mechanics

The flow of a jet from a body opposing a supersonic free stream

P. J.  Finley a1p1
a1 Engineering Department, Cambridge University

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A series of experiments is described in which a jet issues from an orifice at the nose of a body in supersonic flow to oppose the mainstream. An analytical model of the flow is developed which suggests that the aerodynamic features of a steady flow depend primarily on a jet flow-force coefficient, and the Mach number of the jet in its exit plane. A sufficient condition for steady flow is developed. The experiments are found to agree well with predictions based on the flow model. A short account is presented of some previous investigations, and some of their conclusions are re-examined in the light of the present study.

(Published Online March 28 2006)
(Received August 27 1965)
(Revised December 10 1965)

p1 Present address: Engineering Department, University of Malaya, Kuala Lumpur.