Miscible Injection in a Heterogeneous Porous Medium
Pei-Yu Yan, Ching‐Yao Chen · 2014
Figure 1 Viscous fingering is a morphological pattern in an unstable interface between two fluids in a porous medium. It occurs when a less viscous fluid displaces a more viscous one. The images demonstrate the concentration (left) and vorticity (right) of injecting a miscible fluid of lower viscosity in a heterogeneous porous medium associated with a correlation length of l=0.02 and variance s=0.6.