Amplitude equation and pattern selection in Faraday waves

Peilong Chen, Jorge Viñals

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

A nonlinear theory of pattern selection in parametric surface waves (Faraday waves) is presented that is not restricted to small viscous dissipation. By using a multiple scale asymptotic expansion near threshold, a standing wave amplitude equation is derived from the governing equations. The amplitude equation is of gradient form, and the coefficients of the associated Lyapunov function are computed for regular patterns of various symmetries as a function of a viscous damping parameter [Formula Presented]. For [Formula Presented], the selected wave pattern comprises a single standing wave (stripe pattern). For [Formula Presented], patterns of square symmetry are obtained in the capillary regime (large frequencies). At lower frequencies (the mixed gravity-capillary regime), a sequence of sixfold (hexagonal), eightfold, [Formula Presented] patterns are predicted. For even lower frequencies (gravity waves) a stripe pattern is again selected. Our predictions of the stability regions of the various patterns are in quantitative agreement with recent experiments conducted in large aspect ratio systems.

Original languageEnglish (US)
Pages (from-to)559-570
Number of pages12
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume60
Issue number1
DOIs
StatePublished - Jan 1 1999

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Amplitude Equations
Standing Wave
standing waves
Low Frequency
low frequencies
Symmetry
Liapunov functions
viscous damping
Parametric Surfaces
Viscous Dissipation
Gravity Waves
Stability Region
Multiple Scales
symmetry
Surface Waves
gravity waves
Aspect Ratio
Hexagon
Lyapunov Function
surface waves

Cite this

Amplitude equation and pattern selection in Faraday waves. / Chen, Peilong; Viñals, Jorge.

In: Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 60, No. 1, 01.01.1999, p. 559-570.

Research output: Contribution to journalArticle

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