A Navier-Stokes phase-field crystal model for colloidal suspensions

作者:Praetorius Simon*; Voigt Axel
来源:Journal of Chemical Physics, 2015, 142(15): 154904.
DOI:10.1063/1.4918559

摘要

We develop a fully continuous model for colloidal suspensions with hydrodynamic interactions. The Navier-Stokes Phase-Field Crystal model combines ideas of dynamic density functional theory with particulate flow approaches and is derived in detail and related to other dynamic density functional theory approaches with hydrodynamic interactions. The derived system is numerically solved using adaptive finite elements and is used to analyze colloidal crystallization in flowing environments demonstrating a strong coupling in both directions between the crystal shape and the flow field. We further validate the model against other computational approaches for particulate flow systems for various colloidal sedimentation problems.

  • 出版日期2015-4-21