Numerical analysis of impinging air flow and heat transfer in plate-fin type heat sinks

A numerical method for simulating impinging air flow and heat transfer in p late-fin type heat sinks has been developed. In this method, all the fins o f an individual heat sink and the air between them are replaced with a sing le, uniform element having an appropriate flow, resistance and thermal cond uctivity. With this element, fine calculation meshes adapted to the shape o f the actual heat sink are not needed, so the size of the calculation mesh is much smaller than that of conventional methods.