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Using Computational Fluid Dynamics to Simulate Large Mixing-Limited Fires Such as Wildfires

[+] Author Affiliations
Rodman R. Linn

Los Alamos National Laboratory, Los Alamos, NM

Paper No. PVP2004-3129, pp. 139-143; 5 pages
doi:10.1115/PVP2004-3129
From:
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 2
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4686-5
  • Copyright © 2004 by ASME

abstract

A brief qualitative description of work in progress towards using Computational Fluid Dynamics (CFD) and a variety of physics models to simulate large mixing-limited fires. The assumption is made that the fine-scale details of the fuel source geometry and distribution cannot be resolved, but that average fuel loads and characteristics are known. The majority of the description and all of the results that are shown pertain to the simulations of wildfires. Wildfires have been chosen as the first focus area for this work, because they present a prime example of large mixing-limited fires that burn through fuel beds that can not be precisely numerically resolved and in most cases the details of which are not known. A number of preliminary three-dimensional simulations involving vegetation that is resolved down to the individual trees scales and vegetation that has been homogenized using average bulk characteristics are described. This objective of this text is to incite discussion and collaboration with regard to further application of this type of modeling approach.

Copyright © 2004 by ASME

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