Jet interaction in a hypersonic flow: A comparison between PLIF thermometry and computational simulation
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Brieschenk, Stefan
Gehre, Rolf M.
Wheatley, Vincent
Boyce, Russell R.
Kleine, Harald
O'Byrne, Sean
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Abstract
Two-dimensional temperature measurements of the interaction between a sonic H2 jet injected into a hypersonic air-crossflow are compared to Reynolds-Averaged Navier-Stokes (RANS) simulations. The temperature measurements were obtained using the planar laser-induced fluorescence (PLIF) technique on the nitric oxide molecule. The experimental setup consists of a 9° compression ramp and a single, 1.6-mmdiameter fuel injector, angled at 81° to the crossflow. The RANS simulation shows good general agreement with the ensemble-averaged experimental data, but discrepancies are significant in regions where large-scale vortex structures dominate the unsteady flow.
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28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012
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