Parallel Simulation of Subsonic Fluid Dynamics on a Cluster of Workstations.

Abstract

An effective approach of simulating fluid dynamics on a cluster of non-dedicated workstations is presented. The approach uses local interaction algorithms, small communication capacity, and automatic migration of parallel processes from busy hosts to free hosts. The approach is well-suited for simulating subsonic flow problems which involve both hydrodynamics and acoustic waves; for example, the flow of air inside wind musical instruments. Typical simulations achieve $80/%$ parallel efficiency (speedup/processors) using 20 HP-Apollo workstations. Detailed measurements of the parallel efficiency of 2D and 3D simulations are presented, and a theoretical model of efficiency is developed which fits closely the measurements. Two numerical methods of fluid dynamics are tested: explicit finite differences, and the lattice Boltzmann method.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1994
Accession Number
ADA295612

Entities

People

  • Panayotis A. Skordos

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustic Waves
  • Algorithms
  • Artificial Intelligence
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hydrodynamics
  • Local Area Networks
  • Measurement
  • Parallel Computing
  • Simulations
  • Subsonic Flow
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Parallel and Distributed Computing.