Title :
Mathematical simulation of ultra-thin polymeric film spreading dynamics
Author :
Phillips, David M. ; Khair, Aditya S. ; Jhon, Myung S.
Author_Institution :
Dept. of Chem. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
7/1/2001 12:00:00 AM
Abstract :
The mathematical modeling of the dynamics for an ultra-thin perfluoropolyether film spreading on a surface is described, including both endgroup and surface effects. A system Hamiltonian, which includes nearest neighbour interactions, surface, endgroup/endgroup, and endgroup/surface interactions, combined with a kinetic Monte Carlo acceptance scheme controls the particle dynamics. Enhanced 3D visualization techniques address previous problems with particle evaporation and illustrate the validity of the model results. A fractal analysis is also applied to the spreading front of the multilayer film
Keywords :
Monte Carlo methods; fractals; lubrication; polymer films; wetting; 3D visualization; acceptance dynamics; endgroup effects; fractal analysis; kinetic Monte Carlo simulation; lubricant; mathematical model; multilayer film; particle evaporation; perfluoropolyether; spreading dynamics; surface effects; system Hamiltonian; ultra-thin polymeric film; Chemical engineering; Chemical technology; Fractals; Kinetic theory; Lattices; Lubricants; Monte Carlo methods; Nearest neighbor searches; Polymer films; Visualization;
Journal_Title :
Magnetics, IEEE Transactions on