Dynamics of roll domains of parametrically excited capillary waves

We study experimentally the dynamics of roll domains of the parametrically excited capillary waves. The domain rolls were perpendicular to one another and parallel to different boundaries of a rectangular cuvette. It is found that depending on the initial and boundary conditions, two-dimensional different-shape domains arise at the cuvette edges, and the dynamics of the domain is determined by the motion of their fronts. A model of the observed phenomenon is proposed, which is used for numerical calculations. Simulation results are in good agreement with the experimental evidence.