Wall Model Large Eddy Simulation of a Diffusing Serpentine Inlet Duct
Technical Report,01 Sep 2017,01 Mar 2019
AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH WRIGHT-PATTERSON AFB United States
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Accurate modeling predictions of an S-duct are needed to reduce costly testing and accelerate development time while characterizing the flow following the inlet. While DNS is too cost prohibitive due to grid scaling with Reynolds number, WM-LES remains a tractable alternative. The use of higher order numerical models on a fully structured grid in US3D were assessed using DDES and WM-LES turbulence models to obtain increased prediction accuracy of the S-duct flow when compared to previous studies and test data. Further, a first of its kind dynamic Vreman model was derived, implemented, and validated in US3D using a flat plate model.
- Fluid Mechanics