Introduction

Supplemental Material for the article

Synergetic Fluid Mixing from Viscous Fingering and Alternating Injection.
B. Jha, L. Cueto-Felgueroso, R. Juanes, Physical Review Letters, 111, 144501 (2013), doi:10.1103/PhysRevLett.111.144501.

The supplemental material consists of three videos with the evolution of the concentration field during alternating injection of miscible fluids with different values of the viscosity contrast M:

Video 1

In the first video, M=1 (no contrast in viscosity).

Video 2

In the second video, M=7.

Video 3

In the third video, M=33.