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Saffman-Taylor 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.

© Copyright on the images is held by the contributors. Apart from Fair Use, permission must be sought for any other purpose.