English Abstract |
Mesoscopic Simulation Method and Application for
Polymer Materials Satoru Yamamoto Toyota Central R&D Labs., Inc. Aichi, Japan Nippon Gomu Kyokaishi, (2004), 77(4), 130-135 General Review in Japanese. Abstract In this paper, we present a particle simulation method (PSM) for particle dispersed materials and a dissipative particle dynamics (DPD) simulation for a polyelectrolyte membrane for a fuel cell. In the PSM, a particle is modeled by using arrays of spheres and each pair of adjacent spheres is connected with three types of springs; stretch, bend, and twist for the deformability of the particle. The motion of the particles in flow is followed by solving the translational and rotational equations of motion for each constituent sphere considering the hydrodynamic interaction. The method was applied to predicting the microstructure of fiber and platelike particle dispersed systems, their rheological properties, and the motion of fillers in an injection molding flow. In the DPD simulation, we studied the mesoscopic structure of a Nafion membrane. Nafion and water are modeled by a coarse-grained method and the Flory-Huggins ![]() Keywords: Mesoscopic simulation, Particle dispersed system, Particle simulation method, Injection molding, Dissipative particle dynamics, Polyelectrolyte membrane |
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