Automated Grid Refinement Using Feature Detection for Rotorcraft Simulations
نویسندگان
چکیده
We investigate feature detection schemes used to guide appropriate mesh resolution for CFD calculations with adaptive mesh refinement (AMR). Methods based on eigenvalues of the velocity gradient, difference between vorticity and strain rate magnitudes, and eigenvalues of the vorticity vector are investigated and compared to traditional vorticity-based detection schemes such as the Q-criterion. We are particularly interested in non-dimensional schemes that do not require the user to dial-in particular values of a quantity to refine to. Results are shown for a variety of analytic and practical test cases.
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