NASA Technical Reports Server (NTRS) : Formulation pdf

NASA Technical Reports Server (NTRS) : Formulation

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An explicit, Multigrid algorithm was written to solve the Euler and Navier-Stokes equations with special consideration given to the coarse mesh boundary conditions. These are formulated in a manner consistent with the interior solution, utilizing forcing terms to prevent coarse-mesh truncation error from affecting the fine-mesh solution. A 4-Stage Hybrid Runge-Kutta Scheme is used to advance the solution in time, and Multigrid convergence is further enhanced by using local time-stepping and implicit residual smoothing. Details of the algorithm are presented along with a description of Jameson’s standard Multigrid method and a new approach to formulating the Multigrid equations

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 3/19/1990
• Year: 1990
• Book Topics/Themes: NASA Technical Reports Server (NTRS), ALGORITHMS, BOUNDARY CONDITIONS, COMPUTERIZED SIMULATION, EULER EQUATIONS OF MOTION, FORMULATIONS, GRID GENERATION (MATHEMATICS), NAVIER-STOKES EQUATION, COMPUTATIONAL GRIDS, CONVERGENCE, DIFFERENTIAL EQUATIONS, MATHEMATICAL MODELS, RUNGE-KUTTA METHOD, SMOOTHING, TRUNCATION ERRORS, Jentink, Thomas Neil, Usab, William J., Jr

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