Loading...
Please wait, while we are loading the content...
Similar Documents
An upwind multigrid method for solving viscous flows on unstructured triangular meshes. m.s. thesis
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bonhaus, Daryl Lawrence |
| Copyright Year | 1993 |
| Description | A multigrid algorithm is combined with an upwind scheme for solving the two dimensional Reynolds averaged Navier-Stokes equations on triangular meshes resulting in an efficient, accurate code for solving complex flows around multiple bodies. The relaxation scheme uses a backward-Euler time difference and relaxes the resulting linear system using a red-black procedure. Roe's flux-splitting scheme is used to discretize convective and pressure terms, while a central difference is used for the diffusive terms. The multigrid scheme is demonstrated for several flows around single and multi-element airfoils, including inviscid, laminar, and turbulent flows. The results show an appreciable speed up of the scheme for inviscid and laminar flows, and dramatic increases in efficiency for turbulent cases, especially those on increasingly refined grids. |
| File Size | 1721636 |
| Page Count | 62 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940012588 |
| Archival Resource Key | ark:/13960/t13n72t2r |
| Language | English |
| Publisher Date | 1993-08-13 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Relaxation Method Mathematics Turbulent Flow Multigrid Methods Computational Fluid Dynamics Upwind Schemes Mathematics Two Dimensional Models Laplace Equation Two Dimensional Flow Navier-stokes Equation Algorithms Laminar Flow Inviscid Flow Computational Grids Viscous Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Thesis |
