[1]徐德好,陈陶菲,刘向东,等.板式脉动热管内气液两相流流型演化及传热分析[J].东南大学学报(自然科学版),2011,41(3):558-562.[doi:10.3969/j.issn.1001-0505.2011.03.025]
 Xu Dehao,Chen Taofei,Liu Xiangdong,et al.Analysis of two-phase flow patterns transition and heat transfer in flat plate loop pulsating heat pipe[J].Journal of Southeast University (Natural Science Edition),2011,41(3):558-562.[doi:10.3969/j.issn.1001-0505.2011.03.025]
点击复制

板式脉动热管内气液两相流流型演化及传热分析()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第3期
页码:
558-562
栏目:
能源与动力工程
出版日期:
2011-05-20

文章信息/Info

Title:
Analysis of two-phase flow patterns transition and heat transfer in flat plate loop pulsating heat pipe
作者:
徐德好12陈陶菲2刘向东3张程宾3郝英立4
(1南京理工大学能源与动力工程学院,南京 210096)
(2南京电子技术研究所,南京 210039)
(3东南大学能源与环境学院,南京 210096)
(4东南大学空间科学与技术研究院,南京 210096)
Author(s):
Xu Dehao12Chen Taofei2Liu Xiangdong3Zhang Chengbin3Hao Yingli4
(1School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210096, China)
(2Nanjing Institute of Electronic Technology, Nanjing 2010039, China)
(3School of Energy and Environment, Southeast University, Nanjing 210096, China)
(4Institute of Space Science and Technology, Southeast University, Nanjing 210096, China)
关键词:
板式脉动热管流型温度脉动数值模拟
Keywords:
flat plate loop pulsating heat pipe (FP-PHP) flow pattern temperature fluctuation numerical simulation
分类号:
TK172.4;O359+.1
DOI:
10.3969/j.issn.1001-0505.2011.03.025
摘要:
基于VOF方法建立了板式脉动热管内气液两相流动和相变传热的三维非稳态数学模型,并进行了数值求解.研究了该型热管内气液两相流流型演化和相变传热特性,比较了不同加热功率条件下热管内的流型和温度分布.研究结果表明:该板式脉动热管在运行过程中出现的主要流型有泡状流、柱塞流、环状流; 当加热功率为100和120 W时,启动工况下热管内总气相含气率会出现飞升; 稳定循环运行工况下热管各点温度随时间做有规律的周期性脉动,加热段脉动幅度最大,绝热段次之,冷却段最小,温度脉动频率随着功率的增大而升高.
Abstract:
Based on the VOF (volume of fluid) method, a three-dimensional unsteady model of vapor-liquid two-phase flow and heat transfer in a flat-plate pulsating heat pipes (FP-PHP) is developed and numerically analyzed to study the flow pattern transition and heat transfer in the FP-PHP. The effects of the heat load on temperature oscillation and distribution, and the thermal performance of FP-PHP were all investigated and discussed. The results indicate that the main flow patterns, including bubbly flow, slug flow and semi-annular/annular flow, are observed in FP-PHP. During start-up, the total volume fraction in the FP-PHP drastically increases until to the condition of steady directional circulation under the heating power of 100 and 120 W, while a periodical oscillation of fluid temperature occurs. The oscillation amplitude at adiabatic section is larger than that at condenser section but less than that at evaporator section. In addition, with increasing heat load, the temperature oscillation frequency increases.

参考文献/References:

[1] Akachi H,Polaset F.Pulsating heat pipe [C]//The 5th International Heat Pipes Symposium.Melbourne,Australia,1996:208-217.
[2] Zhang Y W,Faghri A.Advances and unsolved issues in pulsating heat pipes [J].Heat Transfer Engineering,2008,29(1):20-44.
[3] Khandekar S,Schneider M,Schfer P,et al.Thermalfluid dynamic study of flat-plate closed-loop pulsating heat pipe [J].Microscale Thermophysical Engineering,2002,6(4):303-317.
[4] Yang H H,Khandekar S,Groll M.Performance characteristics of pulsating heat pipes as integral thermal spreaders [J].Thermal Sciences,2009,48(4):815-824.
[5] Miyazaki Y,Arikawa M.Oscillatory flow in the oscillating heat pipe [C]//The 11th International Heat Pipe Conference. Tokyo,Japan,1999:143-148.
[6] 周岩,曲伟.微小型脉动热管的传热性能试验研究 [J].中国科学院研究生院学报,2007,15(3):363-368.
  Zhou Yan,Qu Wei.Experiments on heat transfer capability of miniature pulsating heat pipes [J].Journal of the Graduate School of Chinese Academy of Science,2007,15(3):363-368.(in Chinese)
[7] 周岩,曲伟.脉动热管的毛细结构和尺度效应实验研究 [J].工程热物理学报,2007,28(4):646-648.
  Zhou Yan,Qu Wei.Experimental study on capillary structure and size effects of pulsating heat pipe [J].Journal of Engineering Thermophysics,2007,28(4):646-648.(in Chinese)
[8] 曹小林,席战利,周晋,等.脉动热管运行可视化及传热与流动特性的实验研究 [J].热能动力工程,2004,19(4):411-415.
  Cao Xiaolin,Xi Zhanli,Zhou Jin,et al.Experimental investigation of the visualization of pulsating heat pipe operation as well as heat transfer and flow characteristics [J].Journal of Engineering for Thermal Energy and Power, 2004,19(4):411-415.(in Chinese)
[9] 曹小林,周晋,晏刚.脉动热管的结构改进及其传热特性的实验研究 [J].工程热物理学报,2004,25(5):807-809.
  Cao Xiaolin,Zhou Jin,Yan Gang.Improvement on structure of pulsating heat pipe and experimental study on its characteristic of heat transfer [J].Journal of Engineering Thermo Physics,2004,25(5):807-809.(in Chinese)
[10] Liu X D,Hao Y L.Numerical simulation of vapor-liquid two-phase flow in a closed loop oscillating heat pipe [C]//ASME 2009 International Mechanical Engineering Congress &Exposition.Lake Buena Vista,USA,2009:159-163.

备注/Memo

备注/Memo:
作者简介:徐德好(1970—),男,博士生,xudehao7007@sina.com.
基金项目:国家自然科学基金资助项目(51078074)、江苏省科技支撑计划资助项目(BS2008667)、教育部科学研究重大资助项目(308010).
引文格式: 徐德好,陈陶菲,刘向东,等.板式脉动热管内气液两相流流型演化及传热分析[J].东南大学学报:自然科学版,2011,41(3):558-562.[doi:10.3969/j.issn.1001-0505.2011.03.025]
更新日期/Last Update: 2011-05-20