Improved Delayed Detached-Eddy Simulation of Transonic and Supersonic Cavity Flows
Transonic and supersonic flows past the M219 cavity with a 5:1:1 aspect ratio are studied using Improved Delayed Detached-Eddy Simulation (IDDES) on a high-quality structured mesh. Comparisons with available experimental and LES data corresponding to the same configuration demonstrate a high level of accuracy at \(Ma=0.85\). The broadband content and the Rossiter modes are captured. Numerical results for a \(Ma=1.5\) inflow are also presented and compared. Typical flow characteristics, such as shear layer instability, vortex impingements and pressure feedback, are well predicted by IDDES.
KeywordsShear Layer Turbulent Kinetic Energy Cavity Flow Shear Layer Instability Cavity Floor
This work is supported by the National Science Foundation of China (Grant No. 11372159). The authors also thank Tsinghua National Laboratory for Information Science and Technology for the computation resources.
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