横風を受ける噴流拡散火炎の温度変動

概要

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An experimental study was made of the temperature fluctuation of a hydrogen-methane jet diffusion flame discharged normal to a free stream of air with a uniform velocity profile. The time-resolved measurement of temperature in the flame was carried out with the application of the Rayleigh scattering method. The mean temperature, root-mean-square (r. m. s.) temperature and probability density function (p. d. f.) of fluctuating temperature were obtained in the various transverse cross sections normal to the jet axis of the flame. The mean temperature profiles obtained by Rayleigh scattering method were compared with those measured by the thermocouple. The results showed that the high-temperature region is located below the jet axis. It was also found that a maximum r. m. s. temperature was located at the top edge of the flame, where the p. d. f. had two peaks.
一般社団法人日本機械学会の論文
1992-07-25