Spatiotemporal diagram of a viscous film flowing down a fiber, plotted as distance from the top of the fiber, with vertical range 10 cm and horizontal range 4 sec. The dark lines are regions of greater thickness, propagating down the fiber.
From the article:
Absolute and Convective Instabilities of a Viscous Film Flowing Down a Vertical FiberC. Duprat, C. Ruyer-Quil, S. Kalliadasis, and F. Giorgiutti-Dauphiné
Phys. Rev. Lett. 98, 244502 (2007)
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