2003/06/30 by Denis Andrienko, D. Andrienko, Burkhard Dünweg +1 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Adhesion, Friction, and Surface Interactions #Fluid Dynamics and Thin Films #Surface Modification and Superhydrophobicity #cond-mat.soft
paper · pdf · doi:10.1063/1.1627751
published as J. Chem. Phys., 119, p. 13106, 2003
arxiv created 2003/09/25 · openalex publication_date 2003/12/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Some fluids exhibit anomalously low friction when flowing against a certain solid wall. To recover the viscosity of a bulk fluid, slip at the wall is usually postulated. On a macroscopic level, a large slip length can be explained as a formation of a film of gas or phase-separated “lubricant” with lower viscosity between the fluid and the solid wall. Here we justify such an assumption in terms of a prewetting transition. In our model the thin-thick film transition together with the viscosity contrast gives rise to a large boundary slip. The calculated value of the slip length has a jump at the prewetting transition temperature which depends on the strength of the fluid-surface interaction (contact angle). Furthermore, the temperature dependence of the slip length is nonmonotonous.