Viscous Fingering Growth

Viscous Fingering process during growth. Filmed at 200fps and played back at 0.15x real speed. Viscous fingering is a complex, pattern forming process that occurs in a turbulence-free flow environment, when a low-viscosity fluid is injected, at pressure, into a viscous fluid. In this case - dyed water is injected into glycerin, held between two glass plates with a gap of approximately 0.25mm. The complex structures formed display a relationship to fractals and other laplacian growth systems in nature.