Abstract
By using the methods of the flow visualization and the PIV, the effects of chemical reaction on the diffusion of jet have been investigated. In this paper, a simple irreversible chemical reaction has selected. This reaction is negligible small heat. Moreover, the large and middle scale structures of the jet have been investigated by applying the wavelet multi-resolution analysis to the images of mixing dye obtained from the LIF method. As a result, it has been found that the jet diffusion is largely affected by the chemical reaction and the difference of the flow structure is recognized between the jet with chemical reaction and that without chemical one.
