EFFECT OF BOUNDARY TREATMENT ON PARTICLE SUSPENSION IN MOLECULAR DYNAMICS SIMULATION.

There are two conventional boundary treatment methods in molecular dynamics (MD) simulation for particle suspension or fiber in cross flow. One is that the fiber is represented by evenly spaced atoms, the other is that the fiber is treated as one mass point. The calculations with the two boundary treatment methods have been compared, it is found that, with the same properties, both methods could generate slip boundary condition on the fiber surface, however the one mass point method could result in very large slip boundary condition on the fiber surface, and the discrepancy could be as high as 2600%. [ABSTRACT FROM AUTHOR]

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