MODELING OF THE DROPLET MORPHOLOGY EVOLUTION IN POLYMER BLENDS UNDER SHEAR BY THE PSEUDO-POTENTIAL LATTICE BOLTZMANN METHOD

摘要

In this work, a novel modeling strategy is proposed to simulate the morphology evolution of polymer blends by the inter-particle-potential lattice Boltzmann method. In this model, the binary components of the polymer blends are tracked by two sets of density distribution functions governed by lattice Boltzmann equation. The model is verified by computing the droplet behavior of deformation, breakup and coalescence under shear, and the results are found in good agreement with the theoretical and experimental observations.