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- W2004336098 abstract "A defect-correction approach is investigated as a means of enhancing the accuracy of flow computations on overset grids. Typically, overset-grid techniques process and pass information only at grid boundaries. In the current approach, error corrections at all overlapped interior points are injected between grids by using a defect-correction scheme. In some cases this is found to enhance the overall accuracy of the overset-grid method. Locally refined overset grids can be used to provide an efficient solution-adaptation method. The defect correction can also be ultilized as an error-correction technique for a coarse grid by evaluating the residual using a fine base grid, but solving the implicit equations only on the coarse grid. Numerical examples include an accuracy and dissipation study of an unsteady decaying vortex flow, the flow over a NACA 0012 airfoil, and the flow over a mulit-element high-lift airfoil." @default.
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- W2004336098 date "1994-01-10" @default.
- W2004336098 modified "2023-09-23" @default.
- W2004336098 title "Accuracy enhancements for overset grids using a defect correction approach" @default.
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- W2004336098 doi "https://doi.org/10.2514/6.1994-523" @default.
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