Large Eddy Simulation of Turbulent Slot Jet Impingement on Heated Flat Plate

The present large eddy simulation (LES) study investigates heat transfer characteristics of a turbulent slot jet impingement on a smooth and flat target plate at a constant wall heat flux condition. The operating parameters are slot width (S) = 2.5 mm, nozzle to plate spacing (H/\(D_{h}\)) = 4, 8, 12 and Reynolds number (Re) = 4000, 8000, 12,000. The results show that Nusselt number (Nu) increases with an increase in Reynolds number. The results also show at a fixed nozzle to plate spacing, on increasing the Reynolds number, Nusselt number (Nu) will also increase. The results also show that at a fixed Reynolds number, on increasing the nozzle to plate spacing, Nusselt number will decrease. The Nusselt number will be highest at stagnation point and then it gets decreased along wall jet regions.