...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Annals of nuclear energy >Investigation on mixing behavior and heat transfer in a horizontally arranged tee pipe under turbulent mixing of hot and cold fluid
【24h】

Investigation on mixing behavior and heat transfer in a horizontally arranged tee pipe under turbulent mixing of hot and cold fluid

机译：冷热流体湍流混合条件下水平三通管内混合行为及传热研究

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Tee pipes are commonly used in piping systems and multichannel networks in various industries. When two fluids at different temperatures mixing turbulently in a tee pipe, and the mass flow rate ratio Q(m,m)/Q(m),(b) is large, both the turbulent penetration and the thermal stratification may appear simultaneously in the branch pipe. The temperature fluctuation induced by the turbulent penetration may lead to high-cycle thermal fatigue of the pipe structure, and the thermal stratification may lead to the pipeline distortion and pipeline support damage. This test section has reference meaning in some typical pipelines in nuclear power plant. In this study, the mixing behavior and heat transfer phenomena in a horizontally arranged tee pipe under turbulent mixing of hot and cold fluids are studied by us with the experiment and the numerical simulation based on the CFD software package FLUENT 16.0. Results show that both the length of the turbulent penetration zone "L-tp" and the length of the thermal stratification zone "L-ts" tend to increase with the increase of the mass flow rate ratio Q(m)(,m)/Q(m,b). As the root cause of different mixing behaviors and heat transfer phenomena in the branch pipe is the combined effect of the buoyancy lift and the inertia force. To obtain a complete description of the mixing behavior, numerical simulations are still essential. (C) 2018 Published by Elsevier Ltd.
机译：三通管通常用于各种行业的管道系统和多通道网络中。当两种不同温度的流体在三通管中湍流混合，并且质量流率比Q（m，m）/ Q（m），（b）大时，湍流渗透和热分层可能同时出现在管道中。支管。由湍流穿透引起的温度波动可能导致管道结构的高周期热疲劳，并且热分层可能导致管道变形和管道支撑损坏。该测试部分对核电站的一些典型管道具有参考意义。在这项研究中，我们通过基于CFD软件包FLUENT 16.0的实验和数值模拟，研究了在水平管道三通管中冷热流体的湍流混合下的混合行为和传热现象。结果表明，湍流穿透区“ L-tp”的长度和热分层区“ L-ts”的长度都随着质量流量比Q（m）（ ，m）/ Q（m，b）。支管中混合行为和传热现象不同的根本原因是浮力和惯性力的共同作用。为了获得对混合行为的完整描述，数值模拟仍然是必不可少的。 （C）2018由Elsevier Ltd.发布

著录项

  • 来源
    《Annals of nuclear energy》 |2019年第5期|139-155|共17页
  • 作者

    Lu Tao; Zhang Yue; Xu Kaili; Chen Yinqiang; Zou Jinqiang;

  • 作者单位

    Beijing Univ Chem Technol, Sch Mech & Elect Engn, Beijing 100029, Peoples R China;

    Beijing Univ Chem Technol, Sch Mech & Elect Engn, Beijing 100029, Peoples R China|China Nucl Power Res Inst, Shenzhen 518000, Peoples R China;

    Res Inst Nucl Power Operat, Wuhan 430074, Hubei, Peoples R China|China Nucl Power Operat Technol Corp Ltd, Wuhan 430223, Hubei, Peoples R China;

    Res Inst Nucl Power Operat, Wuhan 430074, Hubei, Peoples R China|China Nucl Power Operat Technol Corp Ltd, Wuhan 430223, Hubei, Peoples R China;

    Res Inst Nucl Power Operat, Wuhan 430074, Hubei, Peoples R China|China Nucl Power Operat Technol Corp Ltd, Wuhan 430223, Hubei, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Horizontally arranged tee pipe; Thermal stratification; Turbulent penetration; Temperature fluctuation; Mass flow rate ratio;

    机译：三通管水平布置;热分层;湍流穿透;温度波动;质量流量比;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号