POD Convergence Criterion For Numerically Solved Periodic Fluid Flows
نویسنده
چکیده
Determining when a numerical simulation is fully converged is important in getting accurate and reliable results. In this study a new convergence criterion based on extracting the energetic modes of a numerical solution, based on the Proper Orthogonal Decomposition method, is suggested. The POD convergence criterion is tested and applied to flow over a bluff body which has been solved numerically. The higher the mode number, the longer it takes to converge. The results show that the singular values alone can be used to judge convergence based on POD numerical simulations. Also, the suggested POD convergence criterion can be applied successfully and easily to numerical simulations. Key-Words: Convergence, Pod, Numerical, Fluid, Periodic, Bluff
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