摩擦在多缺陷有序中的作用
Role of friction in multidefect ordering
摘要:
我们使用连续模拟研究摩擦的影响,在一个积极的缺陷排序。即使在无摩擦系统中,+1/2缺陷也倾向于并排排列并反向平行,这反映了它们形成流动涡流并随其循环的倾向。增加摩擦增强了缺陷-缺陷相互作用的有效性,并且缺陷形成动态演变的、大规模的、位置和取向有序的结构,这可以解释为由-1/2缺陷优选的六边形堆积与由+1/2缺陷优选的矩形堆积之间的竞争。
英文摘要:
We use continuum simulations to study the impact of friction on the ordering of defects in an active nematic. Even in a frictionless system, +1/2 defects tend to align side-by-side and orient antiparallel reflecting their propensity to form, and circulate with, flow vortices. Increasing friction enhances the effectiveness of the defect-defect interactions, and defects form dynamically evolving, large scale, positionally and orientationally-ordered structures which can be explained as a competition between hexagonal packing, preferred by the -1/2 defects, and rectangular packing preferred by the +1/2 defects.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。