Mesoscopic simulations of microfluidic applications

微通道中的表观滑移已经被不同的作者研究过，但直到今天，对所有不同的实验结果还没有一致的理解。我们正计划进行非常详细的大规模格子玻尔兹曼模拟，以研究的润湿性和粗糙度的通道表面上检测到的滑动的影响。我们将通过在表面附近引入振荡球来模拟典型的表面力装置实验，并研究壁面特性对检测到的边界滑移的影响。我们还将研究表面性质对布朗运动的多粒子系统的结构效应和流动性质的影响。最后，我们的计画将延伸到疏水粗糙微管道中稠密悬浮液的流动研究。

Apparent slip in microchannels has been studied by various authors, but until today there is no consistent understanding of all the different experimental results. We are planning to perform very detailed large scale lattice Boltzmann simulations in order to study the influence of the wettability and roughness of the channel surface on the detected slip. We will simulate typical surface force apparatus experiments by introducing an oscillating sphere in the vicinity of the surface and study the influence of the wall properties on the detected boundary slip. We will also study the influence of the surface properties on structuring effects and flow properties of multi-particle systems with Brownian motion. Finally, our project will be extended to the investigation of flow of dense suspensions in hydrophobic and rough microchannels.