Shampoo is vibrated on a plate at 110Hz. Holes are poked in the shampoo with a puff of air. At low oscillation amplitude, the holes collapse. At an intermediate amplitude, they are stable and persistent. Above a critical oscillation amplitude, the hole delocalizes and acts a seed cell in the formation of a honeycomb structure across the entire plate
Duration : 0:2:22
Shampoo, a shear thinning fluid, is vibrated at several frequencies. Above a critical oscillation amplitude, rolls form. The fluid flow is similar to two adjacent Rayleigh-Bernard convection cells with the left one rotating CW and the right one CCW. This video documents the behavior and formation of these rolls.
Note: Apparently youtube doesn’t let you upload copyrighted music…ignore the bit at the end.
Duration : 0:4:43
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