Abstract

The pressure distribution around the fuel injection nozzle, within a scrara-jet combustion chamber are visualized using pressure-sensitive paint (PSP). The freestream Mach number is 2.4 and injection Mach number is 1.0. The flow fields with jet-to-crossflow dynamic pressure ratios of from 0 to 1.2 were examined. The visualized flow field showed high pressure regions of the bow shock waves and secondary flow.

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