Investigation of Thermo-hydraulic Performance of Circular Tube Fitted with Center cleared Twisted Tape Using CFD Modeling

被引：5
作者：
Vazifeshenas, Y. [1 ]
Delavar, A. [1 ]
机构：
[1] Babol Univ Technol, Fac Mech Engn, Babol Sar, Iran
来源：
INTERNATIONAL JOURNAL OF ENGINEERING | 2015年 / 28卷 / 03期
关键词：
Twisted Tape; Heat Transfer; Friction Factor; Laminar Tubular Flow;
D O I：
10.5829/idosi.ije.2015.28.03c.19
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The article presents a practical technique for enhancing thermo-hydraulic performance of a circular tube. In this way, numerical method focusing on laminar tubular flow is used to compare the effectiveness of utilizing center-cleared twisted tapes instead of typical shape of short width tapes. Numerical analysis represented that using both center-cleared and typical shape of twisted tapes, Re enhancement reduces the flow resistance. Studying short width twisted tapes showed that decreasing the width of twisted tape, reduces the heat transfer and hydraulic performance. Contrarily, using sufficient clearance for center-cleared twisted tapes can increase the heat transfer. Hence, applying center-cleared twisted tape as a tool of enhancing heat transfer can be a promising and practical idea.
引用
收藏
页码：476 / 482
页数：7
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