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Papers:
N. B. Tufillaro, R. Ramshankar, and J. P. Gollub,
Order-disorder transition in capillary ripples,
Physical Review Letters 62 (4), 422 (1989).
File Name: rip1_pdf
N. B. Tufillaro,
Notes on defect driven chaos in capillary ripples
(unpublished, 1988).
File Name: rip_0_pdf
A series of movies showing pattern formation in capillary ripples. This is a very simple experiment. Take a container of water and shake it up and down (about 300 HZ in this movie). Now shine light through the bottom of the clear container, and an image of the top surface of the water will be formed by the light passing through the water/air interface. The patterns formed at the surface are capillary ripples (surface waves whose structure is dominated by the surface tension or "capillary" forces). Now we study the patterns that appear as the amplitude of the forcing is increased. It is observed that standing waves forming a square lattice form at lower amplitudes, and this patterns breaks up (melts) and becomes time dependent at higher forcing amplitudes. For more information see: N. B. Tufillaro, R. Ramshankar, and J. P. Gollub, Order-disorder transition in capillary ripples, Physical Review Letters 62 (4), 422 (1989). ripple film 0, ripple film 1, ripple film 2, ripple film 3, ripple film 4, ripple film 5, ripple film 6, ripple film 7, ripple film 8.
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