Institute for Applied Mechanics, Clausthal University, Adolph-Roemer-Strasse 2A, 38678 Clausthal-Zellerfeld, Germany.
Philos Trans A Math Phys Eng Sci. 2011 Jun 28;369(1945):2387-95. doi: 10.1098/rsta.2011.0087.
The influence of walls on binary encounters of spherical particles under creeping flow is studied by means of the lattice Boltzmann method. Depending on the initial particle displacement different behaviours can be observed, including the 'swapping' trajectories. The domain of the swapping trajectories is identified for interacting spheres with the same diameter; some preliminary results are given for the case of two spheres with different diameters. Finally, the influence of particle swapping on the dynamics of monodisperse suspensions is also described.
通过格子玻尔兹曼方法研究了在蠕动流下球形颗粒二元碰撞中壁面的影响。根据初始颗粒位移，可以观察到不同的行为，包括“交换”轨迹。对于具有相同直径的相互作用球体，确定了交换轨迹的区域；给出了两个不同直径球体情况下的一些初步结果。最后，还描述了颗粒交换对单分散悬浮液动力学的影响。
