Decomposition and Parallelization Strategies for Adaptive Grid-Embedding Techniques

Roger L. Davis, John F. Dannenhoffer

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

A two and three-dimensional adaptive-grid procedure for the solution to fluid dynamic problems is presented. This procedure uses grid-embedding (^-refinement) to automatically refine the grid in regions of high gradients and high truncation error. With this adaptation approach, solutions are obtained with a guaranteed level of accuracy using minimum computer resources. For the solution of steady flows, a multiple-grid technique is used to allow disturbance waves to pass through regions of disparate grid spacing and to accelerate convergence. Domain decomposition and computer parallelization techniques are utilized to allow the solution procedure to be executed efficiently on parallel computer platforms. A discussion of these techniques along with a general description of the adaptive grid-embedding procedure is given. Results are provided demonstrating the accuracy and efficiency of the present procedure on a parallel computer.

Original languageEnglish (US)
Pages (from-to)79-93
Number of pages15
JournalInternational Journal of Computational Fluid Dynamics
Volume1
Issue number1
DOIs
StatePublished - Jan 1993
Externally publishedYes

Keywords

  • Adaptive-grid
  • Euler
  • Navier-Stokes
  • computational fluid dynamics
  • domain decomposition
  • parallel computing

ASJC Scopus subject areas

  • Computational Mechanics
  • Aerospace Engineering
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering

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