Microstructure of Coating Suspensions in Shear Flows, 1998 Engineering Conference Proceedings
In order to understand the fundamental interaction of hydrodynamic forces with pigment particles, the lattice Boltsmann (LB) method has been employed to model spherical particle suspensions in a blade coating system. The microstructures of particle configurations produced from the simulations are analyzed by using the pair distribution function and the Honeycutt-Anderson [6,7] pair analysis technique. The hypothesis of the coexistence of icosahedral and crystal order in a coating suspension is proposed and confirmed by the LB simu-lation. It is evident that a coating suspension under shear force in a coater may be characterized by a blend of icosahedral, face-centered cubic (FCC), body centered cubic (BCC), and hexagonal closed-packed clusters (HCP).