Structure and Dynamics of Dipolar Fluids Under Strong Shear

Abstract

Molecular dynamical simulation has been carried out to investigate the structure and dynamics of a dipolar fluid under strong shear. The dipolar fluid consists of polizable particles, which have an induced dipole moment in the applied field direction. The shear stress is perpendicular to the field direction. When the shear stress is small, the flow has a flowing-chain structure. If the shear stress increases beyond a critical value, the flowing-chain structure changes to flowing layer structure. Each layer is parallel to flow direction and the shear direction. Within one layer, the particles form strings in the flow direction.