Pressure Fluctuations Induced by Jet Injection

Details Pressure Fluctuations Induced by Jet Injection Pressure Fluctuations Induced by Jet Injection

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.563..213k&link_type=abstract

Proceedings of the Fifth European Symposium on Aerothermodynamics for Space Vehicles (ESA SP-563). 8-11 November 2004, Cologne,

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The main features of pressure fluctuation in flow separation regions induced by supersonic jet injection from body surface into on-coming flow are discussed. Two different situations are considered experimentally: transverse jet exhaust into supersonic flow and jet exhaust into sub-, trans-and supersonic counterflow. For transverse jet injection, normalizing parameters has been determined, which allow getting universal fluctuation spectra in a vicinity of separation and in interaction region in wide range of jet and mainstream parameter variation. For jet opposing on-coming flow main attention is concentrated on unsteady flow regime with alternation of multi-cell and single-cell jet flow structures accompanied by low frequency fluctuations of flow parameters on body surface.

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