PIV and thermal-vision experimental and numerical investigation on the airside performance of slotted fin surfaces

Experimental and numerical analyses were carried out to study the fluid flow and heat transfer characteristics of two slotted fin surfaces (X-type and Arc-type) in fin-and-tube heat exchangers. Experiments were conducted by using PIV and infrared thermal-vision systems. Good agreement was found between numerical and experimental data under the Reynolds number ranging from 558 to 2235. The results showed that the heat transfer performance of the...