Vn. Vatsa et al., EXTENSION OF MULTIGRID METHODOLOGY TO SUPERSONIC HYPERSONIC 3-D VISCOUS FLOWS/, International journal for numerical methods in fluids, 17(10), 1993, pp. 825-837
A multigrid acceleration technique developed for solving the three-dim
ensional Navier-Stokes equations for subsonic/transonic flows has been
extended to supersonic/hypersonic flows. An explicit multistage Runge
-Kutta type of time-stepping scheme is used as the basic algorithm in
conjunction with the multigrid scheme. Solutions have been obtained fo
r a blunt conical frustum at Mach 6 to demonstrate the applicability o
f the multigrid scheme to high-speed flows. Computations have also bee
n performed for a generic High-Speed Civil Transport configuration des
igned to cruise at Mach 3. These solutions demonstrate both the effici
ency and accuracy of the present scheme for computing high-speed visco
us flows over configurations of practical interest.