Thermal Radiation Simulator Characterization Methods for the Rectangular Pulse

Abstract

Thermal radiation simulation of nuclear events have been achieved by a variety of processes due to the ban on above ground nuclear tests. Each thermal radiation simulator is unique in its ability and limitations. The simulator type addressed within is the liquid oxygen/aluminum powder combustion Thermal Radiation Simulator (TRS). Where a square thermal pulse is desired, the ensuing flux vs. time record is ordinarily a rough approximation. Time delays brought on by valve actuations and turbulence in the flame wall all serve to distort the desired perfect rectangular pulse. The result is to generate disagreement as to what the actual average flux level is and the length of pulse duration. Four different analytical schemes to determine average flux and pulse duration are presented and compared. Advantages and restrictions are discussed. Keywords: Nuclear explosion simulation, Thermal radiation, Heat transfer, Heat conductivity, Thermal conductivity, Numerical anlaysis, Finite difference theory.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1990
Accession Number
ADA227319

Entities

People

  • Richard B. Loucks

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Combustion
  • Computers
  • Conductivity
  • Data Sets
  • Finite Difference Theory
  • Heat Transfer
  • Liquid Oxygen
  • Materials
  • Nuclear Explosion Simulation
  • Nuclear Explosions
  • Numerical Analysis
  • Radiation
  • Simulations
  • Simulators
  • Test Facilities
  • Thermal Conductivity
  • Thermal Radiation

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Radar Systems Engineering.
  • Solar Physics