所属 明治大学 理工学部 職種 専任講師
|Heat transfer enhancement and pressure loss in a plate-fin heat exchanger with V-shaped oblique wavy surface
|International Journal of Heat and Mass Transfer
|PERGAMON-ELSEVIER SCIENCE LTD
|Jiaming Gong, Junya Onishi, An He, Yukinori Kametani, Yosuke Hasegawa, Naoki Shikazono
|Numerical investigations on the heat transfer and pressure loss of a plate-fin heat exchanger with V-shaped oblique wavy surface have been conducted. The effects of pointing direction of V shape, oblique angle and wave amplitude are systematically studied to find out the geometry with the best thermal-hydraulic performance. It is found that the oblique wavy surface induces two pairs of counter rotating secondary flows which significantly enhance heat transfer irrespective of the pointing direction of the V shape. Meanwhile, the oblique wavy surface with the V shape pointing downstream shows relatively low pressure loss.