AI Article Synopsis
- The molecular dynamics of interfacial fluids in capillary bridges create elastic and dissipative forces at the shearing plane.
- The liquid-solid contact line generates a surprisingly large shear force, which is significantly greater than normal viscous interactions and similar to solid-solid friction.
- These findings align with earlier experimental data and may help answer questions regarding the viscosity of fluids confined at the nanoscale.
Article Abstract
We analytically show that the interfacial fluid's molecular dynamics of capillary bridges induces both elastic and dissipative forces to the shearing plane. Surprisingly, the nanometer-sized, liquid-solid contact line of the bridges exerts a giant "shear" force on the solid surface, which is 10^{5} higher than the usual viscous interaction and comparable to that of solid-solid direct-contact friction. These results are consistent with previously reported experimental data and may provide clues to longstanding questions on the apparent viscosity of the nanoconfined fluids.
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| http://dx.doi.org/10.1103/PhysRevE.105.065108 | DOI Listing |
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