Experimental and numerical study of boiling flow heat transfer of water in a rectangular vertical tube at low flow rate

被引：2

作者：

Wu, Gao ^{[1
,2
,3
]}

Wang, Yanbo ^{[1
,2
,3
]}

Xu, Jianxin ^{[1
,2
,3
,5
]}

Chen, Rong ^{[1
,2
,3
,4
,5
]}

Wang, Hua ^{[1
,2
,3
]}

机构：

[1] Kunming Univ Sci & Technol, Minist Educ, Engn Res Ctr Met Energy Conservat & Emiss Reduct, Kunming, Peoples R China

[2] Kunming Univ Sci & Technol, Natl Joint Engn Res Ctr Energy Saving & Environm P, Kunming, Peoples R China

[3] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming, Peoples R China

[4] Yunnan Agr Univ, Fac Mech & Elect Engn, Kunming, Peoples R China

[5] Kunming Univ Sci & Technol, Minist Educ, Engn Res Ctr Met Energy Conservat & Emiss Reduct, Kunming 650093, Peoples R China

来源：

EXPERIMENTAL HEAT TRANSFER | 2024年 / 37卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Boiling flow; VOF model; heat transfer enhancement; secondary flow; ABSOLUTE VORTICITY FLUX; TRANSFER MECHANISMS; GENERAL CORRELATION; MASS FLUX; DYNAMICS;

D O I：

10.1080/08916152.2023.2189755

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Flow boiling heat transfer is a promising technology for thermal management. In this paper, flow boiling heat transfer characteristics in a rectangular vertical flow channel are experimentally and numerically investigated at low flow rate. Visualization results provide guidance for the prediction of flow patterns. The flow boiling correlation at low flow rates is improved with an error of less than 30%. Numerical results reveal vortices enhanced local heat transfer. Absolute vorticity is introduced to quantify the secondary flow. The results indicate that the secondary flow intensity increases with heat flux, verifying that boiling flow produces the local convection enhancement.

引用

页码：723 / 749

页数：27

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