Development of a computational fluid dynamics method based on a phase-field model for simulation of microscopic two-phase flows with phase change through porous media

2017 Fiscal Year Final Research Report

• Project/Area Number: 26420128
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Takada Naoki 国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究チーム長 (60357358)
• Co-Investigator(Renkei-kenkyūsha): MATSUMOTO Junichi 国立研究開発法人産業技術総合研究所, 材料・化学領域機能材料コンピュテーショナルデザイン研究センター, 研究チーム長 (90392662) ; INOUE Tomoya 国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域集積マイクロシステム研究センター, 研究チーム長 (20392590) ; SAOMOTO Hidetaka 国立研究開発法人産業技術総合研究所, 地質調査総合センター活断層・火山研究部門, 主任研究員 (60421848)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 混相流 / 数値流体力学 / 数値シミュレーション / 濡れ性 / 界面 / テクスチャ表面 / フェーズフィールドモデル / 格子ボルツマン法

Outline of Final Research Achievements

In this study, we have developed a novel computational fluid dynamics (CFD) method based on phase-field model (PFM) and lattice Boltzmann model (LBM) for direct numerical simulations of three-dimensional microscopic immiscible isothermal liquid-liquid two-phase flow through porous media with irregular structures in various science and engineering fields. For the complicated flows, where the interfacial-tension force is dominant over gravity force and the effects of solid surface with non-uniform wettability and textured shape on the fluid motions are so strong, the present CFD method can conduct the simulations more accurately and efficiently than other conventional CFD methods. It also can be extended for application to micro-fluidic problems of gas-liquid-solid multiphase flow with phase change.

Free Research Field

流体工学