Accession Number : ADA294611

Title :   A 3D Agglomeration Multigrid Solver for the Reynolds-Averaged Navier-Stokes Equations on Unstructured Meshes.

Descriptive Note : Contract rept.,

Corporate Author : INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s) : Mavriplis, D. J. ; Venkatakrishnan, V.

PDF Url : ADA294611

Report Date : APR 1995

Pagination or Media Count : 30

Abstract : An agglomeration multigrid strategy is developed and implemented for the solution of three-dimensional steady viscous flows. The method enables convergence acceleration with minimal additional memory overheads, and is completely automated in that it can deal with grids of arbitrary construction. The multigrid technique is validated by comparing the delivered convergence rates with those obtained by a previously developed overset-mesh multigrid approach, and by demonstrating grid independent convergence rates for aerodynamic problems on very large grids. Prospects for further increases in multigrid efficiency for high-Reynolds number viscous flows on highly stretched meshes are discussed.

Descriptors :   *GRIDS, *MESH, *NAVIER STOKES EQUATIONS, *REYNOLDS NUMBER, ACCELERATION, RATES, PROBLEM SOLVING, CONVERGENCE, VISCOUS FLOW, AERODYNAMICS, STEADY FLOW, THREE DIMENSIONAL FLOW.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE