Viscous fingering: Saffman-Taylor instability in a Hele-Shaw cell

Image 1: Jessica Todd. Source

Image 2Dustin Grace, Jessica Todd, Marilyn Poon, Robert Neilson. Source: efluids image gallery

Caption: “Saffman-Taylor instability in a Hele-Shaw cell. When viscous fluid is displaced by a less viscous fluid in a thin layer, a fingering instability forms.

Contributors: Dustin Grace, Jessica Todd, Marilyn Poon and Robert Neilson, University of Colorado, Boulder.

Image created as part of Jean Hertzberg’s Flow Visualization: A Course in the Physics and Art of Fluid Flow.”

More info: http://en.wikipedia.org/wiki/Viscous_fingering

Bookmark the permalink.

Comments are closed