Phase transition induced hydrodynamic instability and Langmuir-Blodgett Deposition

Details Phase transition induced hydrodynamic instability and Langmuir-Blodgett Deposition Phase transition induced hydrodynamic instability and Langmuir-Blodgett Deposition

2001-11-27

arxiv.org/abs/cond-mat/0111513v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 eps figures, submitted to PRL

Scientific paper

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 {\bf 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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