Journal
JOURNAL OF STATISTICAL PHYSICS
Volume 122, Issue 6, Pages 1261-1291Publisher
SPRINGER
DOI: 10.1007/s10955-006-9028-8
Keywords
wetting; microfluidics; thin film flow; stochastic hydrodynamics
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We study the influence of thermal fluctuations on the dewetting dynamics of thin liquid films. Starting from the incompressible Navier-Stokes equations with thermal noise, we derive a fourth-order degenerate parabolic stochastic partial differential equation which includes a conservative, multiplicative noise term-the stochastic thin-film equation. Technically, we rely on a long-wave-approximation and Fokker-Planck-type arguments. We formulate a discretization method and give first numerical evidence for our conjecture that thermal fluctuations are capable of accelerating film rupture and that discrepancies with respect to time-scales between physical experiments and deterministic numerical simulations can be resolved by taking noise effects into account.
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