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山东大学学报 (工学版) ›› 2025, Vol. 55 ›› Issue (6): 69-75.doi: 10.6040/j.issn.1672-3961.0.2024.327

• 能动工程——热管理专题 • 上一篇    下一篇

氖工质深冷环路热管运行不稳定性仿真分析

何发龙1,2,杜王芳2,3*,苗建印4,张红星4,何江4,刘思学4,刘畅4,赵建福2,3   

  1. 1.天津城建大学能源与安全工程学院, 天津 300384;2.中国科学院力学研究所微重力重点实验室, 北京 100190;3.中国科学院大学工程科学学院, 北京 100049;4.航天器热控全国重点实验室(北京空间飞行器总体设计部), 北京 100094
  • 发布日期:2025-12-22
  • 作者简介:何发龙(1988— ),男,安徽马鞍山人,高级实验师,博士,主要研究方向为环路热管传热性能及稳定性. E-mail: hefalong@tcu.edu.cn. *通信作者简介:杜王芳(1984— ),女,山西吕梁人,副研究员,博士,主要研究方向为微重力流体力学. E-mail: duwangfang@imech.ac.cn
  • 基金资助:
    国家重点研发计划资助项目(2022YFF0503502);国家自然科学基金资助项目(11972040)

Numerical investigation on the operating instability of neon charged cryogenic loop heat pipes

HE Falong1,2, DU Wangfang2,3*, MIAO Jianyin4, ZHANG Hongxing4, HE Jiang4, LIU Sixue4, LIU Chang4, ZHAO Jianfu2,3   

  1. HE Falong1, 2, DU Wangfang2, 3*, MIAO Jianyin4, ZHANG Hongxing4, HE Jiang4, LIU Sixue4, LIU Chang4, ZHAO Jianfu2, 3(1. School of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384, China;
    2. Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;
    3. School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China;
    4. National Key Laboratory of Spacecraft Thermal Control(Beijing Institute of Spacecraft System Engineering), Beijing 100094, China
  • Published:2025-12-22

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摘要： 深冷环路热管作为深低温区高效两相热传输系统,运行稳定性问题直接决定着热控系统运控性能。本研究采用深冷环路热管系统级瞬态模型,对氖工质深冷环路热管稳定性进行瞬态仿真。模拟研究氖工质深冷环路热管系统压力和运行温度波动现象及原因,分析失稳过程中系统关键部件内部的气液分布特征。结合温度-压降相图分析系统失稳机制,揭示深冷环路热管不同运行工况中出现的稳定运行、振荡衰减、振荡放大和周期振荡四种不同运行状态特征。

关键词: 深低温, 环路热管, 温度波动, 不稳定性, 瞬态仿真

Abstract: Cryogenic loop heat pipes(CLHPs), as efficient two-phase heat transfer systems for the cryogenic temperature range, have been widely used in many engineering applications both on the ground and in space. The operational stability of CLHPs directly influenced the performance of the thermal control system. In this study, a system-level transient model was employed to conduct transient simulations on the operational stability of a neon-charged CLHP(Ne-CLHP). The phenomena and causes of pressure and operating temperature oscillations in the Ne-CLHP were simulated and investigated. The gas-liquid distribution characteristics inside the key components of the system during the instability process were analyzed in detail. Combined with the temperature-pressure drop phase diagram, the instability mechanism was examined, which revealed four distinct operating states—stable operation, oscillation attenuation, oscillation amplification, and periodic oscillation—that occurred under different operating conditions of the CLHP.

Key words: cryogenic temperature, loop heat pipe, temperature oscillation, instability, transient model

中图分类号: 

  • TK121
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