不同结构下两弯头脉动热管的数值模拟

蒋二辉; 张东伟; 周俊杰; 沈超; 魏新利

doi:10.11949/0438-1157.20190520

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不同结构下两弯头脉动热管的数值模拟

流体力学与传递现象 | 更新时间：2020-06-24

- 不同结构下两弯头脉动热管的数值模拟
- Numerical simulation of pulsating heat pipes with two-bends in different structures
- 化工学报 2019年70卷第S2期页码：244-249
- 作者机构：
  
  1.郑州大学化工与能源学院, 热能系统节能技术与装备教育部工程研究中心，河南郑州 450001
  2.郑州大学土木工程学院，河南郑州 450001
- 作者简介：
  
  蒋二辉（1993—），男，硕士研究生，zzujeh@outlook.com
  张东伟（1985—），男，博士，副教授，zhangdw@zzu.edu.cn
- 基金信息：
  
  国家自然科学基金项目(51706208);河南省科技攻关项目(192102310244)
- DOI：10.11949/0438-1157.20190520
  中图分类号： TK 174.2
- 收稿：2019-05-19，
  
  修回：2019-05-23，
  
  纸质出版：2019-09-05
- 稿件说明：
移动端阅览
蒋二辉, 张东伟, 周俊杰, 沈超, 魏新利. 不同结构下两弯头脉动热管的数值模拟[J]. 化工学报, 2019, 70(S2): 244-249

JIANG Erhui, ZHANG Dongwei, ZHOU Junjie, SHEN Chao, WEI Xinli. Numerical simulation of pulsating heat pipes with two-bends in different structures[J]. CIESC Journal, 2019, 70(S2): 244-249
蒋二辉, 张东伟, 周俊杰, 沈超, 魏新利. 不同结构下两弯头脉动热管的数值模拟[J]. 化工学报, 2019, 70(S2): 244-249 DOI： 10.11949/0438-1157.20190520.

JIANG Erhui, ZHANG Dongwei, ZHOU Junjie, SHEN Chao, WEI Xinli. Numerical simulation of pulsating heat pipes with two-bends in different structures[J]. CIESC Journal, 2019, 70(S2): 244-249 DOI： 10.11949/0438-1157.20190520.

摘要

脉动热管以其独特的换热优势，在电子器件的散热领域取得了卓越的成效。因此提出一种带有锯齿波纹段的两弯头新型脉动热管，并采用数值方法研究了波纹段的布置位置对脉动热管运行性能的影响。结果表明新结构脉动热管的传热性能和启动特性都优于传统结构的脉动热管。此外，当锯齿段布置在热管两端时，具有较短的启动时间，尤其位于冷凝段时锯齿型脉动热管具有更低的温差和最大的换热量。因此可以认为当波纹段位于冷凝段时，新结构脉动热管具有最优的运行特性。

Abstract

The pulsating heat pipe (PHP) has achieved remarkable results in heat dissipation field of electronic devices for its unique advantages in heat transfer. Therefore

this paper proposed a novel saw-tooth corrugated structure PHP with two-bends. Besides

the impact of arrangement position of saw-tooth corrugated section on the operation performance of PHP was investigated by numerical simulation. The results indicate that the heat transfer performance and start-up characters of saw-tooth corrugated PHP are much better than that with traditional structure of PHP. Additionally

the PHP has the lowest start-up timing with the serrated corrugated section in both ends of the heat pipe. Especially

the novel structure PHP with serrated corrugated part in condensation section has lower thermal resistance and higher heat exchange. Thus

it could conclude that the novel saw-tooth corrugated PHP has the best operation performance as new structure is arranged in condensation section.

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references

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