Sequential Process Method Of Modeling Thermo-Gradients And The Dynamics Of Fire Plumes

L. A. Gemoets; R. G. McIntyre; E. E. Gemoets; L. J. Hockett

doi:10.1117/12.932695

30 December 1981 Sequential Process Method Of Modeling Thermo-Gradients And The Dynamics Of Fire Plumes

L. A. Gemoets, R. G. McIntyre, E. E. Gemoets, L. J. Hockett

Proceedings Volume 0305, Atmospheric Effects on Electro-Optical, Infrared, and Millimeter Wave Systems Performance; (1981) https://doi.org/10.1117/12.932695
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

The optical effects of a hot fire Plume can only be calculated in a real-time situation if the dynamics and thermodynamic properties of the plume can be calculated in real-time. A method is presented which can be anplied to the above Problem and many other physical problems. The procedure is to break the Physical nrocess into a sequence of processes to be performed in a cyclic manner, one complete cycle ner time step, with each cycle ending on a physically acceptable state. Calculations are shown first for a steady radially symmetric Plume over a uniform source. Calculations are nresented which show agreement with the much slower conventional approach. The method is then extended by relaxing the assumntion of instant mixing. Radially varying sources, chemical constituents from the flame and atmospheric humidity, are also included.

Citation Download Citation

L. A. Gemoets, R. G. McIntyre, E. E. Gemoets, and L. J. Hockett "Sequential Process Method Of Modeling Thermo-Gradients And The Dynamics Of Fire Plumes", Proc. SPIE 0305, Atmospheric Effects on Electro-Optical, Infrared, and Millimeter Wave Systems Performance, (30 December 1981); https://doi.org/10.1117/12.932695

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