Comparison of implicit multigrid schemes for three-dimensional incompressible flows
The author compares several implicit multigrid schemes for solving three-dimensional incompressible Navier-Stokes equations. These schemes employ a common full approximation storage (FAS) multigrid algorithm implemented with one of three implixit schemes: modified point Gauss relaxation scheme, Gauss-Sedel line relaxation scheme, and Beam-Warming ADI scheme. The flow solver is based on artificial compressibility and uses a third-order upwind difference for convective terms and a second-order central difference for viscous terms. Numerical results are presented. The study concludes that the FAS multigrid algorithm with modified point Gauss relaxation scheme is preferable for simulation both steady-state and time-dependent incompressible flows.
full approximation storage multigrid algorithm
three-dimensional incompressible Navier-Stokes equations
scientific article; zbMATH DE number 1763689
scientific article