Numerical Study on Characteristic of Flow Boiling in Center Orthogonally Rotating Tube

被引：0

作者：

Gao N. ^{[1
]}

Dong Y. ^{[1
]}

Miao R. ^{[1
]}

Wu M. ^{[1
]}

Huang N. ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, Jilin Province

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 18期

关键词：

Center orthogonal rotating tube; Flow boiling; Numerical analysis; Two-phase flow;

D O I：

10.13334/j.0258-8013.pcsee.182358

中图分类号：

学科分类号：

摘要：

Transient numerical analysis on process of flow and heat transfer of flow boiling in rotating tube with rotating axis vertical to the tube axis at constant angular speed was performed. The numerical model and physical model were developed. Employing realizable k-ε (RKE) turbulence model to calculate vapor liquid two phase turbulent flow. The multiphase model volume of fluid (VOF) was used to predict heat and mass transfer combining with user defined function (UDF) to add source terms of vapor and liquid. On the basis of transient numerical results, the difference of wall superheat between rotating channel and static channel is significant at onset of nucleate boiling (ONB) condition. Location of ONB shift to exit with increase of rotation speed. Flow pattern of vapor liquid two phase flow in duct affected by coupling effect of thermal load and rotating load. Either enhanced could make the stability of flow pattern tending toward to disorder. Basing on vapor-liquid two phase flow and heat transfer theory, analyses of the phenomenon appeared were given. © 2019 Chin. Soc. for Elec. Eng.

引用

页码：5442 / 5448

页数：6

共 21 条

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