Phase transition induced hydrodynamic instability and Langmuir-Blodgett Deposition
Abstract
We propose a model to understand periodic oscillations relevant to the origin of mesoscopic channels formed during a Langmuir-Blodgett deposition observed in recent experiments \M. Gleiche, L.F. Chi, and H. Fuchs, Nature 403, 173 (2000)\. We numerically study one-dimensional flow of a van der Waals fluid near its discontinuous liquid-gas transition and find that steady-state flow becomes unstable in the vicinity of the phase transition. Instabilities leading to complex periodic density-oscillations are demonstrated at some suitably chosen sets of parameters.
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