written by Prof. Akira SATOH
on 1st of October, 1999
In terms of the periodic-shell boundary condition, which was developed by our research group, we have succeeded in obtaining the flow field around a cylinder with less distortion, even if a small simulation region is used.
The periodic-shell boundary condition was used
in MD simulations for liquid flow problems.
In terms of the periodic-shell boundary condition, we have succeeded in capturing a pair of vortices behind a cylinder.
The periodic-shell boundary condition does enable us to simulate efficiently the only part of normal shock wave area.
The Orientational distributions of magnetic moments of particles were clarified by means of Monte Carlo simulations.
In terms of the cluster-moving Monte Carlo method, which was developed by our group, we clarified aggregation phenomena in a quiescent flow field. Significant aggregates are not formed for a weak magnetostatic interactions between particles.
Thick chainlike cluster formation was found to occur for strong magnetostatic interactions between particles.
For a highly strong magnetostatic interactions, thick chainlike clusters are not formed, but only thin chainlike clusters.
Thick chainlike clusters incline in the flow direction in s simple shear flow.
Slant angle of thick chainlike clusters becomes constant as time advances.
Thick chainlike clusters exist stably even if time advances further.
Thick chainlike clusters incline in the flow direction
Thick chainlike clusters incline further in the
flow direction
Thick chainlike cluster formation disappears as
time advances.
END.