Impinging jets are used in many engineering applications such as the drying of automobiles, cooling of electronics, and fire suppression systems. In our lab, we are looking at the coherent structures and complex interactions that occur in impinging jets, as they affect significantly heat and/or mass transport at the surface. Video 6 shows high-speed flow visualization of an impinging jet, while quantitative visualizations are captured in Video 7.

Video 6. Flow visualiztaion of a normally impinging jet flow at Re=6300 and H/D=4.


Video 7. Normally impinging jet flow at Re=6300 and H/D=4 captured and processed using PIV: a) velocity field b) vorticity field