Chemical Industry and Engineering Progress ›› 2023, Vol. 42 ›› Issue (8): 4167-4181.DOI: 10.16085/j.issn.1000-6613.2022-1771

• Chemical processes and equipment • Previous Articles     Next Articles

Review on computational fluid dynamics (CFD) simulation and advances in pulsating heat pipes

BU Zhicheng(), JIAO Bo(), LIN Haihua, SUN Hongyuan   

  1. Naval Architecture and Port Engineering College, Shandong Jiaotong University, Weihai 264200, Shandong, China
  • Received:2022-09-22 Revised:2023-01-15 Online:2023-09-19 Published:2023-08-15
  • Contact: JIAO Bo

脉动热管计算流体力学模型与研究进展

卜治丞(), 焦波(), 林海花, 孙洪源   

  1. 山东交通学院船舶与港口工程学院,山东 威海 264200
  • 通讯作者: 焦波
  • 作者简介:卜治丞(2000—),男,硕士研究生,研究方向为脉动热管强化传热。E-mail:21226020@stu.sdjtu.edu.cn
  • 基金资助:
    山东交通学院博士科研启动基金(BS2020032);山东交通学院科研基金(Z202124);山东交通学院研究生科技创新项目(2022YK100)

Abstract:

The pulsating heat pipe (PHP) realizes efficient heat transfer through latent and sensible heat of the working fluid. Due to the strong reciprocating oscillation of the gas and liquid plug, the flow and heat transfer mechanisms are extremely complex. Computational fluid dynamics (CFD) simulation on PHPs can provide important information, such as gas-liquid interface shape, flow pattern transition, oscillating pressure drops, etc. Thus, the published CFD simulations on PHPs are reviewed in this paper. The main formulas, numerical simulation methods, advantages and limitations are introduced, and the available simulation research and conclusions are summarized. The analysis reveals some issues to be solved: there is no definite theoretical basis for the choosing of evaporation and condensation coefficients in phase change model; an agreement on the determination of pipe diameter in two-dimensional model has not been reached; the particle fluid of gas-liquid-solid three-phase flow is simplified into the homogeneous fluid. Based on the above problems, further research directions for using CFD to simulate PHPs are proposed.

Key words: pulstating heat pipe, computational fluid dynamics, gas-liquid flow, phase change, heat transfer

摘要:

脉动热管利用工质的潜热和显热实现高效的热传递,过程中伴随气液塞强烈的往复振荡,流动与传热现象极其复杂。利用计算流体力学模拟可以获得管内气液界面形态、流型转换及振荡压降等重要信息。本文对公开发表的相关研究进行了综述,介绍各个模型的主要公式、数值模拟的求解方法、优势和现有的局限性,总结现有模拟研究开展的主要工作和结论。通过分析发现了目前存在的问题:相变模型中蒸发、冷凝系数的确定仍未有明确的理论依据;二维模型中管径的确定方法还未形成共识;将气-液-固三相流动的颗粒流体简化为均质流体。基于上述问题,本文提出了利用计算流体力学模拟脉动热管后续的研究方向。

关键词: 脉动热管, 计算流体力学, 气液两相流, 相变, 传热

CLC Number: 

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