1. Fractal Fingers

  • The effect of fractal fingering can be observed if a droplet of an ink-alcohol mixture is deposited onto diluted acrylic paint. How are the geometry and dynamics of the fingers influenced by relevant parameters?
  • 如果将一滴墨水与酒精的混合物滴在稀释的丙烯酸涂料上,则可以观察到分形手指的效果。请问手指的几何形状和动力学是如何受相关参数影响的?

参考文献

  • V0062: Fast Fractal Fingering in Fructose Fluids 74TH ANNUAL MEETING OF THE APS DIVISION OF FLUID DYNAMICS (NOVEMBER 21, 2021 — NOVEMBER 23, 2021)
  • Spontaneous fingering between miscible fluids, W. Song, N. N. Ramesh, and A. R. Kovscek, Colloids and Surfaces A: Physicochemical and Engineering Aspects 584, 123943 (2020).
  • The instability of long fingers in Hele–Shaw flows, C. W. Park and G. M. Homsy, Physics of Fluids 28, 1583 (1985).

养成良好的实验记录的习惯(●’◡’●)

课题研究中可以进行记录的内容:

  1. 文献的阅读结果
  2. 课题的开展计划
  3. 实验结果记录的相关链接
  4. 每次课题组会讨论的重点内容

成功做出了预实验,但现象不能很好地重复。实验过程中对于材料的配比较为随意,预实验能够大致反映分型手指的现象,目前正在阅读文献以寻找研究方向。

有什么问题可以在这里留言(不过好像用微信更快,但记得保存记录 (..•˘_˘•..)
  • course/interesting_problems/2023/topic1/start.txt
  • 最后更改: 2023/05/20 14:59
  • 由 李传坤