A multi-block multigrid method for the solution of the Euler and Navier-Stokes equations for three-dimensional flows

摘要: A multi-block multigrid method for the solution of three-dimensional Euler and Navier-Stokes equations is presented. The basic flow solver a cell-vertex which employs central-difference spatial approximations Runge-Kutta time stepping. use local stepping, implicit residual smoothing, techniques, variable-coefficient numerical smoothing results in an efficient robust scheme. strategy places block loop within such that accuracy convergence are not affected by boundaries. This has been verified comparing one- two-block calculations grid generated splitting one-block grid. Results presented both computations wings wing-fuselage combinations.