Dissipative particle dynamics simulations of water droplet flows in a submicron parallel-plate channel for different temperature and surface-wetting conditions
Dissipative particle dynamics simulations of water droplet flows in a submicron parallel-plate channel for different temperature and surface-wetting conditions
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DOI：
10.1080/10407782.2016.1193344
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发表时间：
2016-08
期刊：
影响因子：
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通讯作者：
Toru Yamada;Erik Johansson;B. Sundén;Jinliang Yuan
中科院分区：
文献类型：
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作者：
Toru Yamada;Erik Johansson;B. Sundén;Jinliang Yuan
研究了亚微米尺度平行板通道中温度相关的热物理性质对液滴流动特性的影响。采用多体（MDPD）和能量守恒（DPDe）构型（MDPDe）的耗散粒子动力学方法。通过模拟液滴流动，研究了上下壁面温差、MDPDe颗粒受到的体力以及壁面润湿条件对液滴流动的影响。讨论了对液滴流动的影响。模拟了壁面温度在零度以下的液滴流动。墙上结了一层冰。它的厚度和形状随表面湿润程度、温度梯度和身体受力而变化。
ABSTRACT The effects of temperature-dependent thermophysical properties on droplet flow characteristics in a parallel-plate channel at submicron scale are investigated. The dissipative particle dynamics method with many-body (MDPD) and energy conservation (DPDe) configurations (MDPDe) was used. Droplet flows were simulated to study the effects of the temperature difference between top and bottom walls, body force on MDPDe particles, and wall-wetting conditions. The effects on the droplet flow were discussed. Droplet flows with a subzero wall temperature were simulated. An ice layer was formed on the wall. Its thickness and shape changed depending on surface wetting, temperature gradient, and body force.