Influences of the non-uniform pin-fin array on heat transfer distribution in a rotating rectangular channel

Shuo Cheng Hung, Szu Chi Huang, Yao-Hsien Liu

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

The liquid crystal thermography was used to investigate the heat transfer of non-uniform pin-fin arrays in a rotating rectangular channel (AR = 4:1) at a channel orientation of 135°. The pin-fin array consisted of four and three pins in a staggered arrangement. The different sized pins were inserted at the rows exhibiting four pins, which produced a non-uniform distribution of the pin-fin array. The experiments were operated at Reynolds numbers of 10,000 and 20,000 for both stationary and rotating conditions. The rotation number varied from 0 to 0.33 and the buoyancy parameter ranged from 0 to 0.27. Results indicated that various heat transfer contours were observed as a result of flow separation and vortices caused by non-uniform pins. Compared to the stationary case, rotation increased heat transfer on both trailing and leading surfaces. The pin-fin array consisted of 6 and 9 mm pins produced the highest heat transfer and frictional losses under rotation condition.

原文English
主出版物標題Heat Transfer
發行者American Society of Mechanical Engineers (ASME)
ISBN(列印)9780791851081
DOIs
出版狀態Published - 1 一月 2018
事件ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, GT 2018 - Oslo, Norway
持續時間: 11 六月 201815 六月 2018

出版系列

名字Proceedings of the ASME Turbo Expo
5A-2018

Conference

ConferenceASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, GT 2018
國家Norway
城市Oslo
期間11/06/1815/06/18

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