Investigation on turbulent expansion-corner flow with shock impingement

Kung Ming Chung

doi:10.1115/1.1343084

Investigation on turbulent expansion-corner flow with shock impingement

Kung Ming Chung

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	139-144
Number of pages	6
Journal	Journal of Fluids Engineering, Transactions of the ASME
Volume	123
Issue number	1
DOIs	https://doi.org/10.1115/1.1343084
Publication status	Published - 2001 Mar

All Science Journal Classification (ASJC) codes

Mechanical Engineering

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10.1115/1.1343084

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abstract = "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.",

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AB - 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.

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Investigation on turbulent expansion-corner flow with shock impingement

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