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Heat Transfer Research

Impact factor: 0.930

ISSN Print: 1064-2285
ISSN Online: 2162-6561

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v36.i6.80
pages 507-516

Influence of Turbulence on Transfer of Thermal Radiation in Hydrogen Diffusion Flames

A. I. Bril'
B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus


Quantitative estimates of the inputs by turbulent fluctuations of temperature and concentrations into thermal radiation of the hydrogen diffusion flame have been obtained. Numerical studies have been made using the database on laser flame sounding. The coefficients in the equation of radiation transfer were averaged directly by the samples of instant values of temperature and concentrations, which allowed excluding errors related to the use of model distribution functions. It was shown that processes of turbulence-radiation interaction are one of the major mechanisms of formation of the fields flame thermal radiation.