Interaction between short-scale Marangoni convection and long-scale deformational instability

Nonlinear evolution of two interacting modes of the Marangoni convection, a long-scale deformational mode and a short-scale stationary convective pattern, is considered. It is shown that the interaction between modes stabilizes surface deformation and leads to formation of various convective structures: stationary long-scale modulated roll patterns, traveling and standing long waves, and can also cause chaotic convection (interfacial turbulence).