Abstract
Wavy-fin is used in the heat exchanger of the fuel cell for the characteristic of low-pressureresistance. Also, it has a problem that the fur forms in the wavy channel because of thefuel cell used water-cooling. Wavy-fin should not be clog. But,wavy-fin decrease thermalhydraulicperformance relative to off-set fin. Therefore, the purpose of this research isto increase the heat transfer of the put in the rectangular object in channel with wallwaviness. The influence of the vortex structure are delineated, along with an evaluationof the enhanced thermal-hydraulic performance, c is put into place the span directionand axial flow direction in wavy channel. Result of the numerical analysis, it can be seenthe vortex generation of promotion of flow mixing and increased momentum transportincrease as with decreasing the pressure resistance.
