摘要
具有特殊润湿性能固体表面微观结构的研究一直是学术界的研究热点。通过建立两相流的晶格波尔兹曼模型,将固体表面分别近似为具有周期性的矩形、等腰三角形和半圆形微结构的毛糙表面,研究表面微结构的形状和尺寸对微通道中流体流速的影响,探索了微结构影响表面疏水性能的机制,为构建人工疏水表面提供指导。
Research as the microstructure of solid surface with special wettability has been a hot academic topic in recent years. In order to study the effects of microstructure changes in the shape and size on the velocity of fluid flow in nano-scale channel, a two-phase lattice Boltzmann model is proposed to simulate the fluid flow in nano-scale channels with rough surfaces. The rough surface is approximately treated with simple periodic rectangular, saw-toothed and semicircular protrusions structure respectively. The aim is to understand the mechanism of microstructure in affecting the surface hydrophobicity and provide a guide for constructing artificial super-hydrophobic surfaces.
出处
《桂林电子科技大学学报》
2010年第1期73-77,共5页
Journal of Guilin University of Electronic Technology
基金
国家自然科学基金(10747004)
关键词
晶格波尔兹曼方法
接触角
疏水性
纳米管
毛糙管
lattice Boltzmann method
contact angle
hydrophobicity
nano-scale channel
rough-wall channel
