High-Order Godunov Schemes for Multiphase Gas-Particulate Flowfield Modeling and Simulation

Abstract

The Computation All-Time Algorithm Package with Underlying Lawrence Technology (CATAPULT) is used to simulate the post-explosion evolution of cloud-rises resulting from the compromise of both confined and unconfined chemical and biological facilities. The evolution of nuclear clouds at relatively late (incompressible) times is also simulated. The results are compared with empirical and analytical data where available. In general, axisymmetric simulations do not accurately caption the physics of such flows in terms of cloud height, width, and rate of dissipation in comparison to three-dimensional simulations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2000
Accession Number
ADA389243

Entities

People

  • Brady Brown
  • Jacob Krispin
  • James J. Collins
  • Mark Potts
  • Ralph Ferguson

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Buoyancy
  • Compressible Flow
  • Computational Fluid Dynamics
  • Computations
  • Computer Programs
  • Explosions
  • Fluid Dynamics
  • Fluid Flow
  • Incompressible Flow
  • Nuclear Clouds
  • Particles
  • Simulations
  • Stratified Fluids
  • Symmetry
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Explosive Engineering.