Numerical Investigation of Three Dimensional Laminar Jet Impingement on Heated Plate Surface

Abstract

A numerical three dimensional investigation is performed to study theeffects of the heat flux and Reynolds number on the local heat transferdistribution on smooth flat plate surface impinged with normal air jet.Reynolds number based on nozzle exit condition is varied between 1000and 4000 and heat flux from 500 to 1000 W/m2.The flow domain was studied by solving Navier Stokes equations by finitevolume while the conduction in the plate was studied by solving Laplaceequation. The results are expressed in terms of flow field and isothermcontours. The temperature of the plate surface increases when heat fluxincreases. The thickness of the thermal boundary layer and plate surfacetemperature decreases when Reynolds number increases.