标题： 液晶托伦在泊肃叶流中的行为 显示英文标题

标题： Liquid crystal torons in Poiseuille-like flows

摘要： 三维(3D)液体晶体(LC)环形结构的模拟，在材料流动下，拓扑保护的LC方向场畸变，很少但对微流体应用至关重要。 在这里，我们表明，在低流速下，环形结构采用稳态配置，而在较高流速下分解，这与实验结果一致。 此外，我们表明在边界处的部分滑动条件下，流动会导致环形结构的可逆伸长，这也与实验观察结果一致。 这些结果与之前在相似流动条件下对二维Skyrmion的模拟结果形成对比，强调了在与材料流动耦合的情况下，对这种LC孤子进行三维描述的必要性。 这些发现为未来研究其他拓扑孤子，如Hopfion和Heliknoton，在流动软物质系统中的研究铺平了道路。 显示英文摘要

摘要： Three-dimensional (3D) simulations of the structure of liquid crystal (LC) torons, topologically protected distortions of the LC director field, under material flows are rare but essential in microfluidic applications. Here, we show that torons adopt a steady-state configuration at low flow velocity before disintegrating at higher velocities, in line with experimental results. Furthermore, we show that under partial slip conditions at the boundaries, the flow induces a reversible elongation of the torons, also consistent with the experimental observations. These results are in contrast with previous simulation results for 2D skyrmions under similar flow conditions, highlighting the need for a 3D description of this LC soliton in relation to its coupling to the material flow. These findings pave the way for future studies of other topological solitons, like hopfions and heliknotons, in flowing soft matter systems.