Abstract
Instantaneous spectral radiation intensities of three standard turbulent jet flames were measured and simulated in this study. In the simulation, a recently developed technique was adapted to reconstruct the local integral time and length scales in the flames. The simulated radiation properties, including mean, root mean square, probability density function, power spectral density and autocorrelation coefficient, were generally within 10% of the measurements. The macro time and length scales were found to increase with increasing distance from the axis and the radial averages of these scales were found to increase with down stream distance but decrease with Reynolds number.
Issue Section:
Radiative Heat Transfer
Keywords:
flames,
mixing,
chemically reactive flow,
turbulence,
Combustion,
Heat Transfer,
Monte Carlo,
Radiation,
Turbulence
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Copyright © 2003
by ASME
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