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Investigation of the Cavity Noise Based on the Linear Stability Theory
Yizhi Zhang
120 - 127
10.3233/ATDE240066
Research Article
Advances in Transdisciplinary Engineering
Volume 51: Electronic Engineering and Informatics
Abstract

In this paper, the stability analysis and control of cavity flow in the field of aircraft design are carried out. By solving the time-averaged flow field and combining it with the linear instability theory, the eigenmodes and the instability growth rate of cavity flow are studied. The results show that there are multiple unstable modes in the flow before the control is applied, and the flow is passively controlled by introducing the plate configuration, By changing the velocity profile in the shear layer, the unstable eigen mode tends to be stable, and the flow field is well controlled.

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