Influence of Plasma on the Supersonic Air-intake Buzz

Document Type : Regular Article

Authors

Department of Space Engineering and Rocketry, Birla Institute of Technology, Mesra, Ranchi-835215, India

10.47176/jafm.17.8.2512

Abstract

Buzz is an unwanted and inevitable phenomenon occurring due to the subcritical operation of intake which needs a comprehensive understanding. The buzz pattern in axisymmetric intakes differs from 2D counterpart and requires further investigation. The current study emphasizes the ways of buzz formation and its sustenance at supersonic speeds. In the present study URANS simulations have been done for various throttling ratios to simulate the engine demand conditions. It has been found that the onset of intake buzz happens for anything above the throttling ratio of 0.54. An active flow control technique using plasma actuator was used here to mitigate the influence of buzz. The study also emphases on the impact of plasma power densities on the intake performance.

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