Experiments have been conducted to investigate the dynamic temperature behavior in two-dimensional mixing layer between burned gas and air with the aid of fine wire thermocouple (25μ mdia, Pt-Pt/Rh13%) compensated for the effect of thermal inertia.
Burned gas was obtained by combustion of commercial propane gas and air from matrix burner with the equivalence ratio 0.8.
Data are reported for the time mean, rms, probability density function, autocorrelation, frequency spectrum of the fluctuating temperature.
Conclusions are drawn about the existence of the mean temperature distribution similarity at different sections and the coherent structure in the mixing layer between hot and cold gas.
An attempt has been made to contribute to a better understanding of the turbulent mixing layer.