标题： 可变形向列液晶的通道流动 显示英文标题

标题： Channel flows of deformable nematics

摘要： 我们描述了可变形向列粒子连续模型中的通道流动。在简单剪切流中，可变形性导致应变率和涡度的非线性耦合，并导致形状振荡或流动对齐。最终稳态可能依赖于初始条件，我们通过考虑动力学的相空间表示来解释这种行为。在泊肃叶流中，粒子的可变形性和向列弹性会引起分带现象，靠近壁面的粒子对齐，而靠近通道中心的粒子方向和形状发生振荡。我们的结果表明，即使在简单的流动中，粒子的可变形性也可能导致复杂的行为，这提示了新的微流体实验。 显示英文摘要

摘要： We describe channel flows in a continuum model of deformable nematic particles. In a simple shear flow, deformability leads to a nonlinear coupling of strain rate and vorticity, and results in shape oscillations or flow alignment. The final steady state can depend on initial conditions, and we explain this behaviour by considering a phase space representation of the dynamics. In Poiseuille flow, particle deformability and nematic elasticity induce banding, where particles near the walls are aligned, and those near the centre of the channel oscillate in direction and shape. Our results show that particle deformability can lead to complex behaviour even in simple flows, suggesting new microfluidic experiments.