Measurements Of Diffusion Characteristics Of Hydroxyl Radical With Laser-Induced Fluorescence At High Temperature

In this study, we investigated the diffusion of hydroxyl (OH) radicals generated from the photodissociation of water using a laser-induced fluorescence technique. By conducting measurements in the 483?891 K range, we determined the effects of the OH diffusion coefficient in helium on temperature, observing a strong correlation to a power function. Moreover, we demonstrated the measurement of the OH diffusion coefficient in an argon carrier gas and in a combustion field.