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- W4283216615 abstract "Flowfield in and around the weapon bay can be represented as flow over a rectangular cavity. While considerable research has been conducted on simple cavity flows, the work on complex cavity flows is scarce in the open literature. The goal of the present study is to determine the aeroacoustic, and fluid-dynamic nature of the complex cavity flows with the addition of doors. Experiments were conducted in a Polysonic wind tunnel at a freestream Mach number of 2 to investigate the effect of doors and wedge direction on the aeroacoustic characteristics associated with the cavity flows. The results are compared with the baseline case (no doors) to partially opened and fully opened doors. Global flowfield and surface features were qualitatively analyzed using shadowgraph and oil flow visualization. Further, mean pressure and unsteady pressure fluctuations were also reported using a pressure scanner and high-response unsteady pressure transducers, respectively. The results suggest that the addition of doors significantly changes the flow features. For example, the mean pressure on the cavity floor increases as the door angle is reduced. On the contrary, the unsteady pressure fluctuations dampen for the 22 deg case. Similarly, changing the leading wedge direction alter the amplitude and frequency of discrete tones." @default.
- W4283216615 created "2022-06-22" @default.
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- W4283216615 date "2022-06-20" @default.
- W4283216615 modified "2023-09-23" @default.
- W4283216615 title "Effect of Door angle and Leading Wedge on the Cavity Acoustics at Supersonic Speeds" @default.
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- W4283216615 doi "https://doi.org/10.2514/6.2022-3774" @default.
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