A thin-film flow induced by the electro-osmosis is studied. In contrast to the single-phase electro-osmosis flow through micro- and nanochannels, the flow considered has a free surface, which may deform with the flow developments. A new type of interfacial instability is identified via a linear stability analysis, and subsequent nonlinear flow behavior, including that for the film surface corrugations, is examined by deriving an evolution equation.

This content is only available via PDF.
You do not currently have access to this content.