Influence of wire mesh at nozzle exit on heat transfer from square jets - An experimental investigation

The goal of this work is to compare the fluid flow and heat transfer characteristics of square jet in the presence of a wire mesh at the nozzle exit. Towards this, in-house experiments are carried out by impinging a square jet on a uniformly heated plate of finite thickness, with air as the cooling medium. Two different sets of square jets are employed in this study namely a jet in the absence of mesh and a jet in the presence of a wire mesh at the nozzle exit. Jet centerline mean velocity and turbulence intensity measurements are done with a hot-wire anemometer to support the heat transfer results.