抄録
In this paper,the heat transfer enhancement of the vortex generator is investigated by the numerical analysis using the STAR-CCM+ commercial software. Vortex generator is installed in a rectangular channel, the shape of the vortex generator are trapezoidal, triangular and rectangular. The analytical conditions, Reynolds number based on the trapezoidal fin height is 2500, Prandtl number of the fluid is 0.71. Performance of the vortex generator was evaluated by bulk mean temperature gradient and pressure gradient from the channel inlet to outlet. Three shapes of the effective vortex generator are compared and it has shown the relationship of the the vortex structure generated by the vortex generator and the Nusselt number.
