抄録
The purpose of this study is to make up a visualization measurement system using PIV in order to measure amply flow between plate fins in a fin-and-tube heat-exchanger in an air conditioner. A three times scale model made of transparent materials was used in this experiment. Water was used as a working fluid instead of air employed in an actual heat-exchanger to easily visualize flow. The water flow rate was set through the Reynolds number using the equivalent diameter for a rectangular channel between the plate fins as a characteristic length in order to keep the mechanical similarity of flow. The experimental results showed that the flow around the plate fins in the scale model can be visualized adequately for PIV measurement. Therefore, it is suggested that the measurement system completed is feasible and useful.
