Attractive shapes and dynamic control of Saffman-Taylor fingers in a circular geometry

Supplementary Docs: Movies



Numerics:

1. Evolution towards a highly ramified shape (Figure 1).

movieconstantflux.avi


2. Evolution towards a 6-fold symmetric universal shape (Figure 2).

3. Evolution towards a 7-fold symmetric universal shape (Figure 3a).

4. Evolution towards an 8-fold symmetric universal shape (Figure 3a).

Experiments:

  • Experimental design and apparatus.



  • 5. Evolution towards a 5-fold symmetric shape (Figure 4b).

    6. Evolution towards an 8-fold symmetric shape (Figure 4c).