主催: 一般社団法人 日本機械学会
会議名: 第34回 計算力学講演会
開催日: 2020/09/21 - 2021/09/23
We construct a computational fluid dynamics (CFD) method adopting a multi-phase-field model (MPFM) and a lattice Boltzmann model (LBM) for simulations of microscopic incompressible viscous multi-phase flows. The CFD method adopts a set of conservation-modified Allen-Cahn (AC) equations for calculations of diffuse-interface advection and autonomous formation in the flow. LBM with two-relaxation-time (TRT) collision operator is employed as an explicit numerical scheme for solving the Navier-Stokes equations coupled with the set of AC equations for multiphase fluid flows with arbitrary number of phases. A 2D simulation of droplets demonstrates that the CFD method based on MPFM and LBM would be applicable to the complex microfluidic multiphase flows in bio- and medical-engineering fields.