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?

   将一滴墨水与酒精的混合物滴在稀释的丙烯酸涂料上，可以观察到分形手指效应。研究相关参数如何影响手指的几何形状及其动力学？