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Flow and heat transfer for the mist/steam two-phase flow in the U-shaped channel with column-row-ribs and solid ribs
Jiang, Guangwen1; Gao, Jianmin2
作者部门热控技术研究室
2023-01-05
发表期刊APPLIED THERMAL ENGINEERING
ISSN1359-4311;1873-5606
卷号218
产权排序1
摘要

The comparison of flow field and heat transfer characteristics for the new mist/steam working fluid inside the U-shaped internal cooling channel of the gas turbine blades roughed with new V-45 deg. Column-Row-Ribs and V-45 deg. solid ribs are conducted under the limited working conditions in this work. First, the secondary flow vortex and droplets distribution in channels with different turbulators were analyzed. Then, qualitative heat transfer comparison of these two different ribbed channels was conducted. Furthermore, the quantitative analysis of heat transfer enhancement and heat transfer uniformity was presented under the condition of different mist/steam mass ratio (mist/steam) and droplets diameter (D-0). Through the analysis, it is seen that the Mainstream Secondary Flow Vortexes in U-shaped channel roughed with 45 degrees V-shaped Column-Row-Ribs has the similar structure as the channel with 45 degrees V-shaped solid ribs. The droplets have a more even distribution in U-shaped channel roughed with 45 degrees V-shaped Column-Row-Ribs than channel with 45 degrees V-shaped solid ribs. And the new Column-Row-Ribs will help to solve the problem that the droplets deposit at the windward side of the solid ribbed channel, which benefits to promote the heat transfer evenness of the heated wall. The results proved that the U-shaped channel with 45 degrees V-shaped Column-Row-Ribs cooled with the mist-steam coolant has better heat transfer characteristics than the 45 degrees V-shaped solid ribs. For the U-shaped channel, there exists a best droplet diameter which can achieve the highest heat transfer enhancement.

关键词Gas turbine blade U-shaped passage Column-row-ribs Mist/steam two-phase flow Heat transfer characteristics
DOI10.1016/j.applthermaleng.2022.119277
收录类别SCI
语种英语
WOS记录号WOS:000856567100001
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/96156
专题热控技术研究室
通讯作者Jiang, Guangwen
作者单位1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, 17 Xinxi Rd,New Ind Pk, Xian 710119, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, Western China Inst Qual Sci & Technol, 28 Xianning West Rd, Xian 710049, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Jiang, Guangwen,Gao, Jianmin. Flow and heat transfer for the mist/steam two-phase flow in the U-shaped channel with column-row-ribs and solid ribs[J]. APPLIED THERMAL ENGINEERING,2023,218.
APA Jiang, Guangwen,&Gao, Jianmin.(2023).Flow and heat transfer for the mist/steam two-phase flow in the U-shaped channel with column-row-ribs and solid ribs.APPLIED THERMAL ENGINEERING,218.
MLA Jiang, Guangwen,et al."Flow and heat transfer for the mist/steam two-phase flow in the U-shaped channel with column-row-ribs and solid ribs".APPLIED THERMAL ENGINEERING 218(2023).
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