| 摘要: |
| 微通道冷却是解决高热流密度散热问题最有效的技术之一，具有传热效率高，热阻低，结构紧凑等优点，但同时存在压降增加的问题。其中，微通道的结构是影响其流动与传热性能的重要因素。针对此问题，简述了国内外对单相液冷微通道散热器在结构设计方面的研究进展，将其分为通道几何结构、扰流结构、针肋结构、多层结构、仿生结构和复合强化结构。结合各结构强化传热的原理，分析其在传热系数、压降、综合性能，均温性等方面的优缺点，最后对微通道散热器常用的基体材料与加工方法进行了成本分析。基于上述总结与介绍，从应用角度展望了微通道散热器的前景与发展方向，指出复合结构的应用，仿真与实验的结合，材料学与加工技术的进步以及学科交叉是今后结构研究的重点。 |
| 关键词: 微通道 传热系数 单相流 结构设计 |
| DOI： |
| 投稿时间：2023-11-04 修订日期：2024-02-24
录用日期：2024-03-21 |
| 基金项目: |
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| Research Progress of Microchannel Heat Sink Structures Based on Single-phase Flow |
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| Abstract: |
| Microchannel cooling is one of the most effective technologies to solve the problem of heat dissipation in high heat flux density, which has the advantages of high heat transfer efficiency, low thermal resistance and light weight, however, there is also the problem of increased pressure drop. The structure of microchannels is an important factor affecting their flow and heat transfer performance. To solve this problem, the research progress of single-phase liquid-cooled microchannel heat sinks in terms of structural design at domestic and international is briefly described. Among them, the single-phase heat dissipation structures are divided into variable cross-section structure, flow disruption structures, pin-fin structures, double-layered structures, bionic structures and hybrid reinforced structures. Based on the principle of enhancing heat transfer in various structures, the advantages and disadvantages of heat transfer coefficient, pressure drop, comprehensive performance, and temperature uniformity were analyzed. A cost analysis was conducted on the commonly used matrix materials and processing methods for microchannel heat sinks. Finally looks forward to the prospect and development direction of microchannel heat sink from the perspective of application. The application of composite structures, the integration of simulation and experimentation, advances in material science and processing technology, and the intersection of disciplines are noted as the focus of future structural research. |
| Key words: microchannel coefficient of heat transfer single-phase flow structure design |
