Thermal boundary layer in the plate of a heat exchanger

الملخص EN

In the articles [1] and [2] a thermal problem of a periodically perforated plate of a heat exchanger has been presented .

This model shows five reduced parameters : the period z of the distribution of the holes, the relative thickness e of the plate, and the three numbers of Biot B+ , B+, Bc.

Different situations according to the order of magnitudes of these parameters have been examined safe those that present a phenomenon of " thermal boundary layer" which are going to be developed in this paper.