Unsteady control of supersonic turbulent cavity flow based on resolvent analysis

23 Mar 2020 Liu Qiong Sun Yiyang Yeh Chi-An Ukeiley Lawrence S. Cattafesta Louis N. III Taira Kunihiko

We use resolvent analysis to determine an unsteady active control setup to attenuate pressure fluctuations in turbulent supersonic flow over a rectangular cavity with a length-to-depth ratio of 6 at a Mach number of 1.4 and a Reynolds number based on cavity depth of 10,000. Large-eddy simulations (LES) and dynamic modal decomposition (DMD) of the supersonic cavity flow reveal the dominance of two-dimensional Rossiter modes II and IV... (read more)

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  • FLUID DYNAMICS