Application of infrared thermography to the temperature reconstruction of a rising fireball

Reza Toossi

doi:10.1117/12.56021

1 December 1991 Application of infrared thermography to the temperature reconstruction of a rising fireball

Reza Toossi

Author Affiliations +

Optical Engineering, Vol. 30, Issue 12, (December 1991). https://doi.org/10.1117/12.56021

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 3-m-diam 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.

Citation Download Citation

Reza Toossi "Application of infrared thermography to the temperature reconstruction of a rising fireball," Optical Engineering 30(12), (1 December 1991). https://doi.org/10.1117/12.56021

Published: 1 December 1991

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available