非对称微流道平板脉动热管周期流动特性的可视化实验

赵泽远; 谢明轩; 李泽昊; 张东; 安周建; 金洁; 丁勇

doi:10.16085/j.issn.1000-6613.2026-0023

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非对称微流道平板脉动热管周期流动特性的可视化实验

能源加工与技术 | 更新时间：2026-05-05

- 非对称微流道平板脉动热管周期流动特性的可视化实验
- Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels
- 化工进展 2026年
- 作者机构：
  
  1.兰州理工大学，能源与动力工程学院，甘肃兰州730050
  2.甘肃省太阳能与生物质能互补供能系统重点实验室, 甘肃兰州730050
  3.贵州理工学院，航空航天工程学院，贵州贵阳550003
  4.安徽华东光电技术研究所有限公司，安徽芜湖241003
- 作者简介：
  
  赵泽远（2001—），男，硕士研究生，研究方向为高效传热传质。E-mail：1174816927@qq.com。
  张东，教授，博士生导师，研究方向为高效传热传质。E-mail：zhangdong@lut.edu.cn。
- 基金信息：
  
  甘肃省科技计划项目科技专员专项(25CXGA058);安徽博士后科研项目(2025C1219);甘肃省教育厅产业支撑计划(2025CYZC-034);贵州省科技重大专项(XKBF(2025)031);兰州理工大学红柳杰出青年资助项目
- DOI：10.16085/j.issn.1000-6613.2026-0023
  中图分类号： TK172.4
- 收稿：2026-01-08，
  
  修回：2026-04-30，
  
  录用：2026-04-30，
- 稿件说明：
移动端阅览
赵泽远, 谢明轩, 李泽昊, 等. 非对称微流道平板脉动热管周期流动特性的可视化实验[J/OL]. 化工进展, 2026.

ZHAO Zeyuan, XIE Mingxuan, LI Zehao, et al. Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels[J/OL]. Chemical Industry and Engineering Progress, 2026.
赵泽远, 谢明轩, 李泽昊, 等. 非对称微流道平板脉动热管周期流动特性的可视化实验[J/OL]. 化工进展, 2026. DOI： 10.16085/j.issn.1000-6613.2026-0023.

ZHAO Zeyuan, XIE Mingxuan, LI Zehao, et al. Visualization experimental on periodic flow characteristics of a flat plate pulsating heat pipe with asymmetric microchannels[J/OL]. Chemical Industry and Engineering Progress, 2026. DOI： 10.16085/j.issn.1000-6613.2026-0023.

摘要

为探究非对称微流道平板脉动热管内部工质的流动和传热特性，本文搭建了可视化实验平板，对比测试了非对称流道脉动热管和对称流道脉动热管在50%充液率，10W~80W加热功率下，0°、30°、60°、90°倾角下的运行性能和工质的流动特性。结果表明，非对称流道脉动热管在90°倾角70W加热功率下热阻达到最低，为0.85℃/W；对称流道脉动热管在60°倾角70W加热功率下热阻最低，为0.88℃/W；非对称流道的设计有效降低了重力对脉动热管传热性能的影响；水平工况下，非对称流道脉动热管在50W加热功率下会形成周期性的脉动流，有效改善了脉动热管在水平工况下的传热性能；即使脉动热管已经烧干，随着加热功率的下降，这种周期性的脉动流动是可恢复的。本文通过可视化方法系统阐述了非对称流道中热驱动力和毛细力协同作用的周期性流动机制，为非对称微流道脉动热管的结构优化提供了实验依据。

Abstract

To investigate the flow and heat transfer characteristics of the working fluid in a flat-plate pulsating heat pipe (PHP) with asymmetric microchannels

a visual experimental platform was established. Comparative tests were conducted on asymmetric-channel and symmetric-channel PHPs under a filling ratio of 50%

heating powers ranging from 10 W to 80 W

and inclination angles of 0°

30°

60°

and 90°. The results show that the asymmetric-channel PHP achieves the lowest thermal resistance of 0.85 ℃/W at 90° inclination and 70 W heating power

while the symmetric-channel PHP reaches its lowest thermal resistance of 0.88 ℃/W at 60° inclination and 70 W heating power. The asymmetric-channel design effectively reduces the influence of gravity on the heat transfer performance of the PHP. Under horizontal conditions

the asymmetric-channel PHP exhibits periodic pulsating flow at 50 W heating power

significantly improving its heat transfer performance in horizontal orientation. Moreover

even after dry-out occurs

the periodic pulsating flow can be restored as the heating power decreases. This study systematically elucidates the periodic flow mechanism driven by the synergistic effect of thermal and capillary forces in asymmetric microchannels through visualization

providing experimental insights for structural optimization of asymmetric microchannel PHPs.

关键词

Keywords

references

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