3D Navier-Stokes Flow Analysis for a Large-Array Multiprocessor

Abstract

Computational fluid dynamics (CFD) software is an important analysis tool for engineers, particularly in the aerospace industry. CFD codes are, however, severely limited by the speed of current upper-computers several orders of magnitude increase in floating-point speed is necessary to effectively utilize CFD tools in engineering design. Parallel processing computers will be available in the next few years with theoretical speeds approaching that required for effective use of CFD. Much work needs to the accomplished in developing CFD algorithms to make efficient utilization of these parallel computers. In this work one explicit and two implicit algorithms for solving the 3D Navier-Stokes equations were developed and benchmarked on the Encore Multimax, a shared-memory Multiple Instruction Multiple Data (MIMD) computer. Parallelism was obtained with domain decomposition. Parallel efficiencies ranged from 50 to 95% with 2 to 9 processors on 24 X 12 X 12 and 50 X 30 X 30 meshes.

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Document Details

Document Type
Technical Report
Publication Date
Apr 17, 1989
Accession Number
ADA207985

Entities

People

  • Kelton M. Peery

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerospace Industry
  • Boundary Layer
  • Chemical Reactions
  • Computational Fluid Dynamics
  • Computer Programming
  • Computers
  • Debugging
  • Differential Equations
  • Engineering
  • Engineers
  • Fluid Dynamics
  • Fluid Mechanics
  • Laminar Boundary Layer
  • Parallel Computing
  • Parallel Processing
  • Two Dimensional
  • Viscous Flow

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Parallel and Distributed Computing.

Technology Areas

  • Space