活跃粘弹性悬浮中的时空组织:一个散射粒子动力学研究
Simran Kapoor1, Harinadha Gidituri2, V S Akella1
1Department of Physics, Indian Institute of Technology Jammu, NH-44, Jagti Village, Jammu, J & K, India. sathish.akella@iitjammu.ac.in.
Soft matter
|January 20, 2026
概括
这项模拟研究探讨了粘弹性流体中的活性粒子如何自我组织. 它揭示了两个不同的集体动态:单向或振荡,取决于系统参数.
科学领域:
- 软物质物理学 软物质物理学
- 生物物理学的生物物理.
- 计算流体动力学的流体动力学.
背景情况:
- 微生物居住在封闭的粘弹性环境中.
- 这些生物体在复杂的环境中表现出自我组织和集体动态.
研究的目的:
- 模拟受限下粘弹性流体中的活性颗粒悬浮.
- 在粘弹性介质中复制移动生物的实验观测.
主要方法:
- 散射粒子动力学 (DPD),一种基于中观粒子的方法.
- 建模极简主义系统以质量复制实验结果.
主要成果:
- 悬浮滴中的集体动力学是由粘弹性介质调解的.
- 两种稳定状态配置出现了:单向旋或振荡旋.
- 创建了一个相位图,显示基于活性剂强度,包装分数和聚合物度的配置.
结论:
- 粘弹性限制影响了活性颗粒悬浮的集体动力学.
- 该研究提供了对生物和合成活性物质系统的自我组织机制的洞察.
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