Lattice-Gas Automata Fluids on Parallel Supercomputers

Abstract

A condensed history and theoretical development of lattice-gas automata in the Boltzmann limit is presented. This is provided as background to understanding the implementation of the lattice-gas method on two parallel supercomputers: the MIT cellular automata machine CAM-8 and the Connection Machine CM-5. The macroscopic limit of two-dimensional fluids is tested by simulating the Rayleigh-Benard convective instability, the Kelvin-Helmholtz shear instability, and the Von Karman vortex shedding instability. Performance of the two machines in terms of both site update rate and maximum problem size are comparable. The CAM-8, being a low-cost desktop machine, demonstrates the potential of special-purpose digital hardware.

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Document Details

Document Type
Technical Report
Publication Date
Nov 23, 1993
Accession Number
ADA434392

Entities

People

  • Guy P. Seeley
  • Jeffrey Yepez
  • Norman H. Margolus

Organizations

  • Phillips Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Automata
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Computer Science
  • Computers
  • Exclusion Principle
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Heat Energy
  • Mechanics
  • Molecular Dynamics
  • Parallel Computing
  • Three Dimensional
  • Two Dimensional
  • Vortex Shedding

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)