论文标题
流场由于点粘度变化而引起的流场紊乱
Flow field disturbance due to point viscosity variations in a heterogeneous fluid
论文作者
论文摘要
当忽略流体惯性时，我们得出异质流体中的点粘度变化产生的流场干扰。发现干扰流场与称为压力的力 - 二极管产生的流场相同。使用理论和数值模拟的组合，我们展示了由于点粘度变化的存在，如何改变活性刚性粒子的流体动力学，以及如何利用它来操纵和将其引导在微流体环境中。
We derive the flow field disturbance produced by point viscosity variations in a heterogeneous fluid when subject to a background flow while neglecting fluid inertia. The disturbance flow field is found to be identical to that generated by a force-dipole called stresslet. Using a combination of theory and numerical simulations, we show how the hydrodynamics of an active rigid particle is altered due to the presence of point viscosity variations, and how this can be exploited to manipulate and steer them in microfluidic environments.
