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Wall-modeled large eddy simulation for the flows around an axisymmetric body of revolution
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Journal Article
Wall-modeled large eddy simulation for the flows around an axisymmetric body of revolution
2023
Overview
The flow around an axisymmetric body of revolution (DARPA SUBOFF bare model) at
Re
= 1.2 × 10
7
is numerically investigated using the wall-modeled large eddy simulation (WMLES). To evaluate the capabilities of WMLES in such wall-bounded turbulent flows, the effects of the wall stress model and sampling distance are systematically studied. The numerical results of the non-equilibrium wall stress model with an appropriate sampling distance are in good agreement with the experiments in terms of pressure coefficient, skin-friction coefficient, and drag coefficient. On this basis, the thickening of the turbulent boundary layer and the expansion of the wake can be clearly observed through flow visualization, especially using the Liutex vortex identification method.
Publisher
Springer Nature Singapore,Springer Nature B.V
