Nanoscopic spontaneous motion of liquid trains: non-equilibrium molecular dynamics simulation

Details Nanoscopic spontaneous motion of liquid trains: non-equilibrium molecular dynamics simulation Nanoscopic spontaneous motion of liquid trains: non-equilibrium molecular dynamics simulation

2009-12-12

arxiv.org/abs/0912.2413v1

Physics

Fluid Dynamics

7 pages, 8 figures, to appear in The Journal of Chemical Physics

Scientific paper

Macroscale experiments show that a train of two immiscible liquid drops, a bislug, can spontaneously move in a capillary tube because of surface tension asymmetries. We use molecular dynamics simulation of Lennard-Jones fluids to demonstrate this phenomenon for NVT ensembles in sub-micron tubes. We deliberately tune the strength of intermolecular forces and control the velocity of bislug in different wetting and viscosity conditions. We compute the velocity profile of particles across the tube, and explain the origin of deviations from the classical parabolae. We show that the self-generated molecular flow resembles the Poiseuille law when the ratio of the tube radius to its length is less than a critical value.

Affiliated with

Also associated with

No associations

Rating

Nanoscopic spontaneous motion of liquid trains: non-equilibrium molecular dynamics simulation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nanoscopic spontaneous motion of liquid trains: non-equilibrium molecular dynamics simulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nanoscopic spontaneous motion of liquid trains: non-equilibrium molecular dynamics simulation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-533176