Nanoparticle-tuned spreading behavior of nanofluid droplets on the solid substrate
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- 作者：YingQi Li (1)
FengChao Wang (1)
He Liu (1) (2)
HengAn Wu (1)
1. CAS Key Laboratory of Materials Behavior and Design of Materials ; Department of Modern Mechanics ; University of Science and Technology of China ; Hefei ; 230027 ; Anhui ; China
2. PetroChina Research Institute of Petroleum Exploration and Development ; Beijing ; 100083 ; China - 刊名：Microfluidics and Nanofluidics
- 出版年：2015
- 出版时间：January 2015
- 年：2015
- 卷：18
- 期：1
- 页码：111-120
- 全文大小：1,804 KB
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53. Zhao YP (2012) Physical mechanics of surfaces and interfaces. Beijing, Science Press, pp 552鈥?60 - 刊物类别：Engineering
- 刊物主题：Engineering Fluid Dynamics
Medical Microbiology
Polymer Sciences
Nanotechnology
Mechanics, Fluids and Thermodynamics
Engineering Thermodynamics and Transport Phenomena - 出版者：Springer Berlin / Heidelberg
- ISSN：1613-4990
文摘
Nanofluids, which are the term for suspensions of nanometer-sized structures, have recently been extensively used in a rapid increasing number of applications. In this work, spreading behaviors of water-based nanofluid droplets were investigated via molecular dynamics simulation. Influencing factors such as nanoparticle volume fraction and surface wettability were discussed in details on the atomic scale. Our simulation results demonstrated that the dynamics spreading of nanofluids can be effectively regulated by adjusting these factors. Based on the scaling law \(R(t) \propto t^{1/n} ,\) we proposed a competitive mechanism analysis among surface tension, viscous force and disjoining pressure, which describes the power relationship between contact radius R and spreading time t. These findings indicate that the nanoparticle-tuned spreading behavior of nanofluid droplets can be extensively used for diverse applications.