Taylor-Saffman instability in a Hele-Shaw cell. The pressure of rapidly injecting water lifted the top sheet, inducing the instability around the outer edge of the honey as air entered.

Taylor-Saffman instability in a Hele-Shaw cell. The pressure of rapidly injecting water lifted the top sheet, inducing the instability around the outer edge of the honey as air entered.

FlowVis@CU
2014, 2014 Team First, Flow Categories, Media, Saffman-Taylor Instability, Videos, z Class & Assignment

By Alex Unger, Eric Fauble, Scott Hodges, and Zac Rice for Spring 2014 Team First.
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Dyed water and air injected into honey produces the Taylor-Saffman instability in a Hele-Shaw cell. The pressure of rapidly injecting water lifted the top sheet, inducing the instability around the outer edge of the honey as air entered.
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Pressure gradients caused by squeezing and pulling the plates of a Hele-Shaw cell cause the Saffman-Taylor fingering instability in honey, air and dyed water.

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