Conjugate jet impingement heat transfer investigation

Abstract

A transient numerical investigation has been carried out in this study to evaluate the effects of the conjugate heat transfer (CHT) onto the thermal characteristics due to the air and water jet impingement process. It is shown that the convective heat transfer at the fluid-solid interface is influenced by the nozzle size, boundary heat flux and thermal conductivity of the metal. The thermal characteristics from the CHT process approaches the one with no CHT process as the thermal conductivity of the metal decreases. One of the important effects of the CHT process is to redistribute the uniform boundary heat flux inside the solid and create a non-uniform heat flux boundary at the fluid-solid interface.