圆弧形组合开缝翅片三维数值模拟

摘要

用数值模拟的方法对翅片管换热器中一种新型圆弧形组合翅片的传热特性进行了数值模拟,结果表明:在翅片后半部开缝与在翅片前半部开缝相比,换热性能增加7％左右,但阻力降不明显.%Numerically simulating heat-transfer performance of new arc-type combined fins of finned tube exchangers shows that comparing with the slotting at the fin' s front part, and that at the fin' s back part can make the heat-transfer performance up by 7% or so along with a notobvious pressure drop.