Abstract
The two-dimensional jet diffusion in liquid-phase has been investigated experimentally in order to clarify an effect of turbulent mixing on chemical reactions. The chemical reaction used in this study is the second-order reaction (R+B→S). The concentrations of all the species (R, B, and S) have been measured simultaneously by the combined technique of the light absorption spectrometric method with an optical fiber probe and the conserved scalar theory. It was found that the profiles of mean concentration and r.m.s. value of reactant R are close to the frozen limit in the present condition. However, the mean concentration of reactant B decreases and the r.m.s. value becomes large in the downstream direction as compared with the frozen limit by the effect of chemical reaction.
