Numerical and experimental investigations on longitudinal vortex generator for heat transfer enhancement in rectangular channel

Zheng Li, Yangyang Chen, Xianchen Xu, Kuojiang Li, Zhaoqing Ke, Keyu Zhou, Hsiu Hung Chen, Guoliang Huang, Chung-Lung Chen, Chien Hua Chen

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

In this article, longitudinal vortex generator (LVG) for heat transfer enhancement in rectangular channel is investigated numerically and experimentally. Two symmetrical delta shaped plates are placed vertically at the bottom of a rectangular channel and a pair of longitudinal vortices are generated and transferred downstream. These vortices were clockwise and counterclockwise, respectively. Correspondingly, the flow has the tendency to shoot to the surface opposite to the one with the LVG, then it separates into two steams and runs back to the LVG surface. Local heat transfer enhancement in the rectangular channel varies due to this fountain effect. Size effects were discussed for two types of LVG. With the same height, the wider LVG has better thermal performance within the rectangular geometry limit. One specific LVG was fabricated and tested experimentally and results show significant heat transfer enhancement. It indicated that the LVG can enhance the heat transfer significantly and the numerical results are reliable.

原文English
主出版物標題Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing
發行者American Society of Mechanical Engineers
ISBN(電子)9780791857892
DOIs
出版狀態Published - 1 一月 2017
事件ASME 2017 Heat Transfer Summer Conference, HT 2017 - Bellevue, United States
持續時間: 9 七月 201712 七月 2017

出版系列

名字ASME 2017 Heat Transfer Summer Conference, HT 2017
2

Conference

ConferenceASME 2017 Heat Transfer Summer Conference, HT 2017
國家/地區United States
城市Bellevue
期間9/07/1712/07/17

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