NO_2の光解離を利用したNO-LIF法による流速測定法(熱工学,内燃機関,動力など)

概要

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Measurements of velocity tracking NO molecules, which were produced by N0_2 photodissociation, were implemented. 355-nm pulsed Nd : YAG laser creates NO line by N0_2 photodissociation. After a certain delay from the emission of 355-nm laser ray, 226-nm pulsed laser was shot, and instantaneous trajectory of NO line is taken by Laser Induced Fluorescence method of NO. NO_2 dilute gas, which consists 907-ppm of N0_2 and N_2, was injected from the tube, and velocity of the flow was measured. In addition, the velocity of unburnt gases in a premixed flame and a diffusion flame were measured by this method. Intensities of NO LIF are big enough to measure the instantaneous motion of NO line in the flow. Instantaneous velocities in the flow were measured accurately after a certain delay from the emission of Nd : YAG laser. Velocities of unburned gas in premixed and diffusion flames were also measured accurately, even near the vicinity of flame. Results showed high possibility of applications of this method for steady and unsteady flows
社団法人日本機械学会の論文
2003-10-25