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<p>In recent years, the grooved heat pipes (GHPs) have been widely used in the thermal management of electronic components under both aerospace and ground scenarios due to their merits of high thermal conductivity and strong reliability. Even though the structures of the GHPs are simple, the mechanisms involved are quite complex. The fundamental driving force in GHPs arises from the capillary-induced pressure gradient established within the micro/nano-scale grooved structures, where the dynamic curvature evolution of the liquid-vapor interface constitutes a critical determinant of the heat pipe’s thermal-hydraulic characteristics. To date, there remains a lack of reviews specifically addressing GHPs. This review comprehensively summarizes the design, fabrication, performance evaluation, and practical application of GHPs. Especially, the start-up and operating mechanisms of GHPs of different structures are revealed in detail. Besides, the development trend of GHPs is presented. This systematical review is expected to facilitate the design and application of GHPs.</p>

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A Comprehensive Review on the Research and Development of Grooved Heat Pipes

  • 期刊论文

  • 发表日期：

    2026年3月11日

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  • Yilin Yang,
  • Zhenhua Jiang,
  • Jiawei Li,
  • Zhe Yan

摘要

In recent years, the grooved heat pipes (GHPs) have been widely used in the thermal management of electronic components under both aerospace and ground scenarios due to their merits of high thermal conductivity and strong reliability. Even though the structures of the GHPs are simple, the mechanisms involved are quite complex. The fundamental driving force in GHPs arises from the capillary-induced pressure gradient established within the micro/nano-scale grooved structures, where the dynamic curvature evolution of the liquid-vapor interface constitutes a critical determinant of the heat pipe’s thermal-hydraulic characteristics. To date, there remains a lack of reviews specifically addressing GHPs. This review comprehensively summarizes the design, fabrication, performance evaluation, and practical application of GHPs. Especially, the start-up and operating mechanisms of GHPs of different structures are revealed in detail. Besides, the development trend of GHPs is presented. This systematical review is expected to facilitate the design and application of GHPs.