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- W2074402010 abstract "An artificial dissipation model, including boundary treatment, that is employed in many central difference schemes for solving the Euler and Navier-Stokes equations is discussed. Modifications of this model such as the eigenvalue scaling suggested by upwind differencing are examined. Multistage time stepping schemes with and without a multigrid method are used to investigate the effects of changes in the dissipation model on accuracy and convergence. Improved accuracy for inviscid and viscous airfoil flow is obtained with the modified eigenvalue scaling. Slower convergence rates are experienced with the multigrid method using such scaling. The rate of convergence is improved by applying a dissipation scaling function that depends on mesh cell aspect ratio." @default.
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- W2074402010 date "1987-06-09" @default.
- W2074402010 modified "2023-09-27" @default.
- W2074402010 title "Artificial dissipation and central difference schemes for the Euler and Navier-Stokes equations" @default.
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- W2074402010 doi "https://doi.org/10.2514/6.1987-1107" @default.
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