Measuring the Temperature Distribution in a Laminar Flame by Laser-Induced Hydroxyl Radical Fluorescence
R. V. Tolstoguzov, A. G. Savitskii, V. M. Dulin
Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: laser-induced fluorescence, temperature, impact surface, optical methods, thermometry
Abstract
The results of experimental measurements of the flame temperature in the presence of an impact surface and a liquid phase added to the flow are presented. Methods based on laser-induced fluorescence were used to measure temperature. For a flame of a pre-mixed methane-air mixture with values of the stoichiometric coefficient Φ = 0.92 and Reynolds number Re = 1000, a reverse flow zone was detected near the impact surface in the case when this surface is located at a distance from the nozzle exit equal to three calibers. The temperature field of a gas-droplet flame was measured using the laser-induced fluorescence method
|
