Effect of geometric size of curved delta winglet vortex generators and tube pitch on heat transfer characteristics of fin-tube heat exchanger

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• 作者：KeWei Song<sup>asup><sup> ; sup><sup>bsup> ; ZhiPeng Xi<sup>asup><sup> ; sup><sup>bsup> ; Mei Su<sup>asup><sup> ; sup><sup>bsup> ; LiangChen Wang<sup>bsup><sup> ; sup><sup>csup> ; Xiang Wu<sup>asup><sup> ; sup><sup>bsup> ; LiangBi Wang<sup>asup><sup> ; sup><sup>bsup><sup> ; sup><sup>lbwang@mail.lzjtu.cnsup>
• 关键词：Heat exchanger ; Curved delta winglet vortex generators ; Tube pitch ; Fin pitch
• 刊名：Experimental Thermal and Fluid Science
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：82
• 期：Complete
• 页码：8-18
• 全文大小：3047 K
• 卷排序：82

文摘

Curved delta winglet vortex generator (CDWVG) is experimentally studied. CDWVG can effectively enhance the heat transfer performance. Fin pitch has less effect on Colburn factor but obviously affects friction factor. Decreasing the tube pitch is beneficial to heat transfer enhancement.