Longitudinal vortices can enhance heat transfer with small pressure loss penalty and has been widely applied in heat transfer enhancement of tube bank fin heat exchangers. Setting winglet vortex generator(VG) that can generate longitudinal vortices on the fin surface is a promising technique to enhance the airside heat transfer. In order to obtain better heat transfer performance, lots of VGs are punched out of the fin surface, so several longitudinal vortices appear in the flow channel. The interaction of ...
Received date:2015-05-18.Corresponding author:WANG Liangbi,lbwang@mail.lzjtu.cnFoundation item:supported by the National Natural Science Foundationof China(51366008,51376086)and Gansu Provincial Foundation forDistinguished Young Scholars(145RJDA324).引言?