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智能活跃布朗粒子的集体动力学与视觉感知和速度对齐在3D:球体,棒,和虫
Zhaoxuan Liu1, Marjolein Dijkstra1
1Soft Condensed Matter & Biophysics Group, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3584 CC Utrecht, The Netherlands. m.dijkstra@uu.nl.
Soft matter
|January 31, 2025
概括
具有视觉感知和速度对齐的智能活跃布朗粒子 (iABP) 形成了多样化的集体结构,模仿了自然的集群和蜂群行为. 这些自我驱动的粒子提供了对活性物质的洞察力和纳米机器人开发的潜力.
科学领域:
- 活动物质物理学 活动物质物理学
- 集体行为动态 集体行为动态
- 统计力学就是统计力学.
背景情况:
- 生物系统表现出复杂的集体行为,如群聚和群聚.
- 最近的实验系统使用具有视觉引导运动性的活性体粒子.
- 这些粒子表明了群体形成和凝聚力.
研究的目的:
- 在3D模拟中研究具有视觉感知和速度对齐的智能活性布朗粒子 (iABPs).
- 探索视觉角,自我推进速度和相互作用强度等参数如何影响集体行为.
- 分析新出现的结构,并将其与自然系统进行比较.
主要方法:
- 计算机模拟了3D活性布朗粒子 (iABP).
- 建模基于视觉感知的自动驾驶方向向质量中心.
- 结合与邻近粒子的速度对齐.
- 变化的参数:视觉角 (θ),Péclet数 (Pe),对齐强度 (Ωa) 和转向强度 (Ωv).
主要成果:
- 球形iABP形成集群,磨砂模式和气相.
- 缩小盒子尺寸显示了带状集群和诱球形式.
- 棒状iABP表现为带状,状,螺旋状和辐射结构.
- iABP虫表现出带状,流线状,状和纠的结构.
- 观察到的模式类似于自然现象,如磨和鱼球.
结论:
- iABP可以产生模仿自然系统的多样化集体行为.
- 模拟参数显著影响新兴结构.
- 这项工作为设计合成活性物质系统提供了一个框架.
- 潜在的应用包括纳米机器人和理解多细胞组织.
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