Experiments are performed to study the interaction of an impinging shock wave and an expansion fan in a Mach 1.280 flow. The expansion fan neutralizes the pressure rise induced by the impinging shock wave. The mean surface static pressure shows a linear combination of the effect of both perturbations. Surface pressure fluctuations, which are associated with the characteristics of the perturbed boundary layer, indicate a transitional behavior. This is related to a nonlinear phenomenon arising the simultaneous action of the impinging shock wave and the expansion fan. The level of downstream pressure fluctuation depends on the overall inviscid interaction strength.
Investigation on Turbulent Expansion-Corner Flow With Shock Impingement
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division August 25, 1999; revised manuscript received November 17, 2000. Associate Editor: D. Williams.
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Chung, K. (November 17, 2000). "Investigation on Turbulent Expansion-Corner Flow With Shock Impingement ." ASME. J. Fluids Eng. March 2001; 123(1): 139–144. https://doi.org/10.1115/1.1343084
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