The Effect of Water Mist and Water Spray on Radiative Heat Transfer for Stored Ordnance

Abstract

A method for determining the mitigating effects of water sprays and mists on thermal radiation is presented. The aim of the method is to provide a quantitative measure of the effectiveness of water sprays with various droplet radii at mitigating thermal radiation and apply the results to ordnance stored in magazines. A water droplet Mie-scattering model was developed and applied to thermal radiation calculated for a worst-case scenario of the ANZAC frigate's air weapons magazine. Calculated results showed that water droplets in the form of mists and fogs were more effective in blocking thermal radiation than larger water droplets in the form of spray or rain. The convective component of heat transfer is also identified as being important and follow-on work is required to determine its magnitude.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2003
Accession Number
ADA418434

Entities

People

  • Con Doolan

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Australia
  • Combustion
  • Engineering
  • Fires
  • Heat Transfer
  • Mechanical Engineering
  • Mie Scattering
  • Munitions
  • Periodicals
  • Radiation
  • Refractive Index
  • Scattering
  • Systems Science
  • Thermal Radiation
  • Universities
  • Weapons

Readers

  • Aerosol Science/Aerosol Physics
  • Combustion and Flow Dynamics.
  • Naval Architecture and Marine Engineering.