Pulse-burst cross-correlation Doppler global velocimetry is performed in the NASA Langley Unitary Plan Wind Tunnel. The technique is used to make planar velocity measurements across an oblique shockwave, which is generated by a large splitter plate set at a -2° angle of attack in a Mach 2.4 flow. Assessment of the velocimetry indicates agreement with theoretical velocity values to within 0.5 percent on average, while the precision of the measurements was within 1.4 percent. The success of the initial measurements warrant further investigation of the technique for more complex flowfields.
Velocity Measurements Across an Oblique Shock Using Pulse-Burst Cross-Correlation DGV
AIAA SciTech Forum and Exhibition, 2021 ; 2021 ; Nashville, TN, US
Conference paper
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English