An Experimental Investigation of Pressure Oscillations in Two- Dimensional Open Cavities
AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING
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An experimental study was conducted to determine the characteristics of the pressure oscillations in a small two-dimensional cavity exposed to tangential air flow. Various cavity configuration changes, involving the shape of the leading and trailing edge, were investigated to determine the relative capability to suppress the resonance in the cavity response. Five airflow Mach numbers 0.5, 0.6, 1.0, 1.3, 1.5 were used to investigate the Mach-response relationship. Two cavity lengths were considered 2 and 4 14 inches. The depth of the cavities was kept constant at one inch. Fluctuating pressure recordings and schlieren photographs were made of each test.
- Fluid Mechanics