27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-4.9.3

EXPERIMENTAL INVESTIGATION OF RAMP INJECTION INTO SUPERSONIC CROSSFLOW USING NANOPARTICLE-BASED PLANAR LASER SCATTERING

W. D. Liu, S. P. Zhang
National Univ.of Defense Technology, China

Keywords: npls, ramp injector, mixing enhancement, stream-wise vortices

Nanoparticle-based Planar Laser Imaging (NPLI) method and other techniques are applied to investigations of mixing enhancement characteristics of ramp injectors in supersonic flow. It's indicated that effect of streamwise vortexes is the main mechanic of mixing enhancement. Sweepback configuration will strengthen the vortexes and intensify the mixing effect accordingly.

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