Reynolds number effects on mixing and combustion in a reacting shear layer

The temperature field is investigated in a gaseous, reacting mixing layer between two streams containing low concentrations of hydrogen and fluorine, over a wide range of Reynolds numbers. The results show the presence of large, hot structures that govern the flow dynamics at all speeds. The mean-temperature profile is found to decrease modestly with increasing speed, a result suggesting a weak Reynolds number dependence of the production rate. Tripping ht high-speed boundary layer is found to have a significant effect on the width of the mixing zone and the profile of the mean temperature rise.