Mechanism of Stefan Flow in the Collection of Particles on Evaporating/Condensing Surfaces: A Review
Mechanism of Stefan Flow in the Collection of Particles on Evaporating/Condensing Surfaces: A Review
复制标题
蒸发/冷凝表面颗粒收集的 Stefan 流机制：综述
DOI：
10.1021/acs.iecr.0c06076
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Hongwei Zhang
中科院分区：
文献类型：
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作者：
Zongwei Gan;Yuzhong Li;Xiaoyu Zhang;Maofeng Nie;Hongwei Zhang
蒸发和冷凝是传热传质领域中的重要问题。蒸发或冷凝表面收集颗粒是一种有趣的现象。相变面上产生的Stefan流对颗粒的运动有很大影响。在以往的研究中，Stefan流的输运机制缺乏系统的综述。本文介绍了颗粒收集中的Stefan流机理，系统总结了颗粒收集的不同理论模型。指出了颗粒收集中的光学力(热电渗力和Stefan流)对蒸发/冷凝表面影响的理论计算与实验结果之间的差异。从Stefan流的角度讨论了这种变化。本研究还强调，冷凝表面上的Stefan流可能成为进一步提高颗粒收集效率的重要机理。
Evaporation and condensation are important in the field of heat and mass transfer. Particle collection by an evaporating or condensing surface is an interesting phenomenon. The Stefan flow generated on the phase change surface has a significant effect on the movement of particles. The transport mechanism of Stefan flow in previous studies lacks a systematic review. This study introduces the Stefan flow mechanism in particle collection, and the different theoretical models of particle collection are systematically summarized. The differences between the theoretical calculation and the experimental results of the effect of the phoretic forces (thermophoresis and Stefan flow) in particle collection on evaporating/condensing surfaces are pointed out. The variations are discussed from the viewpoint of Stefan flow. This study also emphasizes that Stefan flow on the condensing surface may become an important mechanism to further improve the particle collection efficiency.