Share Email Print
cover

Proceedings Paper

Thermal sensing of fireball plumes
Author(s): Reza Toossi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An algorithm has been developed to reconstruct the internal temperature distribution within a rising buoyant thermal from measurements of the radiances by an infrared imaging camera. The technique is applied to detonation of a stoichiometric mixture of methane and oxygen contained in a three-meter diameter mylar balloon. The temperature-time histories of the evolving fireball showed torus formation, followed by rapid cooling from entrained ambient air. Comparison of the temperature distribution with results of an Eulerian hydrodynamic computer code shows good agreement except at the center of the fireball. A possible explanation might be the lack of an entrainment mechanism in the hydrocode.

Paper Details

Date Published: 1 March 1991
PDF: 10 pages
Proc. SPIE 1467, Thermosense XIII, (1 March 1991); doi: 10.1117/12.46450
Show Author Affiliations
Reza Toossi, Physical Research, Inc. (United States)


Published in SPIE Proceedings Vol. 1467:
Thermosense XIII
George S. Baird, Editor(s)

© SPIE. Terms of Use
Back to Top