A mesoscopic approach for multi-phase flows in nano-corrugated channels

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dc.creatorBenzi, R.
dc.creatorBiferale, L.
dc.creatorSbragaglia, M.
dc.creatorSucci, S.
dc.creatorToschi, F.
dc.date2006-05-04
dc.date.accessioned2026-07-07T08:08:57Z
dc.date.available2026-07-07T08:08:57Z
dc.descriptionAn approach based on a lattice version of the Boltzmann kinetic equation for describing multi-phase flows in nano- and micro-corrugated devices is proposed. We specialize it to describe the wetting/dewetting transition of fluids in presence of nanoscopic grooves etched on the boundaries. This approach permits to retain the essential supra-molecular details of fluid-solid interactions without surrendering -actually boosting- the computational efficiency of continuum methods. The mesoscopic method is first validated quantitatively against Molecular Dynamics (MD) results of Cottin-Bizonne et al. [Nature Mater. 2, 237 (2003)] and then applied to more complex situations which are hardly accessible to MD simulations. The resulting analysis confirms that surface roughness and capillary effects may conspire to promote a counter-intuitive but significant reduction of the flow drag with substantial enhancement in the mass flow rates and slip-lengths in the micrometric range for highly hydrophobic surfaces.
dc.identifierhttps://arxiv.org/abs/nlin/0605013
dc.identifierhttp://arxiv.org/abs/nlin/0605013
dc.identifierPhys. Rev. Lett. 97, 204503 (2006)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/131438
dc.subjectCellular Automata and Lattice Gases
dc.subjectMaterials Science
dc.subjectFluid Dynamics
dc.titleA mesoscopic approach for multi-phase flows in nano-corrugated channels
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