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- W4231260645 abstract "Abstract A high-order accurate reconstructed discontinuous Galerkin (rDG) method is developed for compressible inviscid and viscous flows in arbitrary Lagrangian-Eulerian (ALE) formulation on moving and deforming unstructured curved meshes. Taylor basis functions in the rDG method are defined on the time-dependent domain, where the integration and computations are performed. The Geometric Conservation Law (GCL) is satisfied by modifying the grid velocity terms on the right-hand side of the discretized equations at Gauss quadrature points. A radial basis function (RBF) interpolation method is used for propagating the mesh motion of the boundary nodes to the interior of the mesh. A third order Explicit first stage, Single Diagonal coefficient, diagonally Implicit Runge-Kutta scheme (ESDIRK3) is employed for the temporal integration. A number of benchmark test cases are conducted to assess the accuracy and robustness of the rDG-ALE method for moving and deforming boundary problems. The numerical experiments indicate that the developed rDG method can attain the designed spatial and temporal orders of accuracy, and the RBF method is effective and robust to avoid excessive distortion and elements near moving boundaries." @default.
- W4231260645 created "2022-05-12" @default.
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- W4231260645 date "2020-10-12" @default.
- W4231260645 modified "2023-09-26" @default.
- W4231260645 title "A Reconstructed Discontinuous Galerkin Method for Compressible Flows on Moving Curved Grids" @default.
- W4231260645 doi "https://doi.org/10.21203/rs.3.rs-41658/v2" @default.
- W4231260645 hasPublicationYear "2020" @default.
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