We clarify the essential faults in Fang, A.; Mi, Y. Drainage of a thin Liquid Film between Hydrophobic Spheres: Boundary Curvature Effects. Langmuir 2014, 30, 83-89, which led to unphysical conclusions. 1990), underlying the boundary conditions Fang and Mi (2014), should clearly turn out to be vital only for spheres of a small radius, cctv drain survey fareham but not with numerical parameters used by Fang and Mi. 2005) to a description of a drainage of confined polymers, Horn et al. Vinogradova (1995) As a facet notice, we comment that results Vinogradova (1995) are general, being relevant, in addition to hydrophobic surfaces in water, Vinogradova and Yakubov (2003); Cottin-Bizonne et al. Besides that, a curvature contribution to the slip length Einzel et al. In their paper Fang and Mi (2014) Fang and Mi declare that by including the boundary curvature effect into the hydrodynamic slip boundary conditions, they reformulate and improve the Vinogradova principle of a thin movie drainage between hydrophobic surfaces.
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