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Multigrid for hypersonic viscous two- and three-dimensional flows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Vatsa, V. N. White, J. A. Swanson, R. C. Turkel, E. |
| Copyright Year | 1991 |
| Description | The use of a multigrid method with central differencing to solve the Navier-Stokes equations for hypersonic flows is considered. The time dependent form of the equations is integrated with an explicit Runge-Kutta scheme accelerated by local time stepping and implicit residual smoothing. Variable coefficients are developed for the implicit process that removes the diffusion limit on the time step, producing significant improvement in convergence. A numerical dissipation formulation that provides good shock capturing capability for hypersonic flows is presented. This formulation is shown to be a crucial aspect of the multigrid method. Solutions are given for two-dimensional viscous flow over a NACA 0012 airfoil and three-dimensional flow over a blunt biconic. |
| File Size | 1226511 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910020779 |
| Archival Resource Key | ark:/13960/t5q86733d |
| Language | English |
| Publisher Date | 1991-07-01 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Runge-kutta Method Hypersonic Flow Airfoils Two Dimensional Flow Coefficients Convergence Navier-stokes Equation Hypersonics Time Dependence Three Dimensional Flow Smoothing Finite Difference Theory Dissipation Blunt Bodies Computational Grids Diffusion Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
