Viscosity measurement and simulation of microbubble wetting on flat surfaces with many-body dissipative particle dynamics model
Viscosity measurement and simulation of microbubble wetting on flat surfaces with many-body dissipative particle dynamics model
复制标题
利用多体耗散粒子动力学模型进行平坦表面微泡润湿的粘度测量和模拟
DOI：
10.1016/j.colsurfa.2020.125559
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Yang Liu
中科院分区：
文献类型：
--
作者：
Lanlan Xiao;Kaixuan Zhang;Jiayi Zhao;Shuo Chen;Yang Liu
液体最重要的流动性质之一是其粘度。本文采用两种非平衡态方法--Poillille流方法和Couette流方法测量了多体耗散粒子动力学（MDPD）模型的粘性。这两种非平衡态方法所得结果是一致的。基于Poiffille流方法，我们得到了不同数值参数下MDPD模型的粘性映射。此外，静态润湿的微气泡的研究从地图上选择的系统。得到了微气泡接触角与固液相互作用的关系，为进一步开展基于微气泡的微流控研究和应用提供了理论依据。
One of the most important flow properties of liquid is its viscosity. In the present paper, two non-equilibrium methods, Poiseuille flow method and Couette flow method, are employed to measure the viscosity of many-body dissipative particle dynamics (MDPD) model. The results obtained by these two non-equilibrium methods are consistent with each other. Based on Poiseuille flow method, we obtain a map for the viscosity of MDPD model with different numerical parameters. Furthermore, the static wetting of microbubbles is investigated by a selected system from the map. The relationship between the contact angle of bubbles and the solid-liquid interaction is obtained, which can be helpful for further microfluidic research and applications based on microbubbles.