Boundary Lubrication: Squeeze-out Dynamics of a Compressible 2D Liquid
| dc.creator | Tartaglino, U. | |
| dc.creator | Persson, B. N. J. | |
| dc.creator | Volokitin, A. I. | |
| dc.creator | Tosatti, E. | |
| dc.date | 2003-01-09 | |
| dc.date.accessioned | 2026-07-25T15:01:26Z | |
| dc.description | The expulsion dynamics of the last liquid monolayer of molecules confined between two surfaces has been analyzed by solving the two-dimensional (2D) Navier-Stokes equation for a compressible liquid. We find that the squeeze-out is characterized by the parameter g0 ~ P0/(rho c^2), where P0 is the average perpendicular (squeezing) pressure, rho the liquid (3D) density and c the longitudinal sound velocity in the monolayer film. When g0 << 1 the result of the earlier incompressible treatment is recovered. Numerical results for the squeeze-out time, and for the time-dependence of the radius of the squeezed-out region, indicate that compressibility effects may be non-negligible both in time and in space. In space, they dominate at the edge of the squeeze-out region. In time, they are strongest right at the onset of the squeeze-out process, and just before its completion. | |
| dc.description | revtex4, 6 pages, 4 figures. Published on PRB on December 31, 2002 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0301121 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0301121 | |
| dc.identifier | Phys. Rev. B 66, 214207 (2002) | |
| dc.identifier | doi:10.1103/PhysRevB.66.214207 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/30375 | |
| dc.subject | Materials Science | |
| dc.title | Boundary Lubrication: Squeeze-out Dynamics of a Compressible 2D Liquid | |
| dc.type | text |