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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 56, 2009 - Issue 2
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Original Articles

Simultaneous Determination of Distributions of Temperature and Soot Volume Fraction in Sooting Flames Using Decoupled Reconstruction Method

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Pages 153-169 | Received 02 Apr 2009, Accepted 03 Jun 2009, Published online: 22 Jul 2009
 

Abstract

This article presents a simulation investigation for simultaneous determination of distributions of temperature and soot volume fraction in a nonoptically thin sooting flame using a decoupled reconstruction method. Flame temperature and emissivity images can be calculated from two monochromatic radiative intensity images in the visible spectrum range. Then, the distributions of temperature and soot volume fraction were reconstructed from flame temperature and emissivity images. Based on experimental data from a laminar ethylene diffusion flame available in the literature, the effects of measurement errors, detection wavelengths, and optical thickness on the accuracy of the reconstruction have been investigated.

The present study has been supported by the National Natural Science Foundation of China (nos. 50806026, 50636010, and 50721005).

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