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

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.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1995
Accession Number
ADA294611

Entities

People

  • D. J. Mavriplis
  • V. Venkatakrishnan

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aspect Ratio
  • Computational Fluid Dynamics
  • Construction
  • Convergence
  • Efficiency
  • Engineering
  • Euler Equations
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Navier Stokes Equations
  • Reynolds Number
  • Three Dimensional
  • Two Dimensional
  • Viscous Flow
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)