论文标题
微通道中振荡流中可变形胶囊的惯性迁移
Inertial migration of a deformable capsule in an oscillatory flow in a microchannel
论文作者
论文摘要
已经研究了微通道中牛顿流体在振荡流中可变形胶囊的动力学。通过模拟微通道内的胶囊，探索了振荡频率，胶囊变形性和通道流速的影响。另外，该模拟捕获了强加压力振荡对胶囊迁移模式的影响。通过消除设计不切实际的长通道的需求，振荡通道流可以使极小的生物学颗粒的重点。提出的结果表明，胶囊的平衡位置不仅通过在压力梯度中添加振荡成分而变化，而且还受到胶囊变形性和通道流速的影响。此外，已经表明，随着通道流速和胶囊的刚度增加，胶囊的振荡幅度降低。
Dynamics of a deformable capsule in an oscillatory flow of a Newtonian fluid in a microchannel has been studied numerically. The effects of oscillation frequency, capsule deformability, and channel flow rate have been explored by simulating the capsule within a microchannel. In addition, the simulation captures the effect of the type of imposed pressure oscillations on the migration pattern of the capsule. An oscillatory channel flow enables the focusing of extremely small biological particles by eliminating the need to design impractically long channels. The presented results show that the equilibrium position of the capsule changes not only by the addition of an oscillatory component to the pressure gradient, but it also is influenced by the capsule deformability and channel flow rate. Furthermore, it has been shown that the amplitude of oscillation of capsules decreases as the channel flow rate and the rigidity of the capsule increases.
