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Experimental investigation of transverse jet interaction on a missile body using laser velocimetry and flow visualization

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4 Author(s)
Schafer, H.J. ; Franco-German Res. Inst., Saint-Louis, France ; Augenstein, E. ; Esch, H. ; Emunds, H.

An experimental investigation of the interaction between a lateral jet issuing from a missile body and the oncoming external flow is presented. The experiments were carried out in the ISL supersonic blow-down wind tunnel at a Mach number of 3. The test model was a cone-cylinder-flare body with a side jet nozzle located on the cylindrical section, representing a simple generic high-speed missile configuration. For this study, three distinct flow conditions were chosen which are characterized by a jet ejection pressure ratio of 50, 70 and 97, respectively. Flow velocity measurements were performed with the aid of a two-component laser Doppler velocimeter (LDV). In addition, flow visualization techniques were used in order to confirm the LDV results. Combined with previous surface pressure measurements, the present investigation yields a consistent picture of the jet-induced flow field comprising a separation zone and various shock waves upstream from the jet exit. This detailed knowledge of the flow structure is required for evaluating the performance of lateral jet control systems

Published in:

Instrumentation in Aerospace Simulation Facilities, 2001. 19th International Congress on ICIASF 2001

Date of Conference:

Aug 2001