The discussion centers on the non-linearity caused by free surface flow, particularly through boundary conditions. It is established that thicker films exhibit greater boundary layer flow velocity, which influences the dynamics of surface waves. These waves can accumulate fluid from thinner films, leading to the formation of breaking waves that traverse the wet surface. For a deeper understanding, the equations governing these phenomena are elaborated in chapters 2 and 3 of "Free-surface flow: shallow-water dynamics" by Nikolaos D. Katopodes.
PREREQUISITESFluid dynamicists, researchers in hydrodynamics, and engineers working on surface flow applications will benefit from this discussion.
Boundary layer flow velocity is greater for thicker films. A surface wave catches up with, and collects more fluid from thinner films, until it builds into a breaking wave, that rushes across the wet surface.binbagsss said:
in terms of the equations sorry, not physically, thanksBaluncore said:
Which situation and which equations.binbagsss said: