Comparison of PSP pressure fields obtained at M=0.5 and M=1.6 (background image), angle of attack is 15 deg.

Pressure variation at M=0.5 is ~ 10 times less than that at M=1.6; flow structure is significantly different. Dynamic presentation was adjusted to display pressure-field details using same color scale.

(Bi-Luminophore Paint, exposure time 10 ms, LED light source)

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