計算力学講演会講演論文集
Online ISSN : 2424-2799
セッションID: 126
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マルチフェーズフィールドモデルと格子ボルツマンモデルに基づく混相流の数値計算手法
*高田 尚樹高木 知弘茂木 克雄
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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.

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