抄録
The present study aims at improving the impinging jet heat transfer by placing an open-cellular porous plate on a heated surface, which a circular jet nozzle with a flange is installed. The annular porous plate was use as a heat sink. In the experiment, N2 gas was used as a coolant and Ag, Cu, Ni and Ni-Cr porous plates having various porosities, pores per inch and thickness were examined. It is found that the impingement heat transfer can be augmented appreciably by placing an appropriate porous plate in a heating surface.
