A research on uniformed mathematical model for inhomogeneous interface of reactive, two-phase or shock wave flows

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630044
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: Hokkaido University
• Principal Investigator: Oshima Nobuyuki 北海道大学, 工学(系)研究科(研究院), 教授 (10217135)
• Co-Investigator(Renkei-kenkyūsha): TONEGAWA Yoshihiro 東京工業大学, 理学院, 教授 (80296748)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 計算科学 / 数値流体力学 / 界面 / フェーズフィールド法 / レベルセット法

Outline of Final Research Achievements

This research investigates a relation between the scalar conservation equation and the level-set equation based on local interface speed model for a premixed combustion flame. A new model formulation is introduced for the source term of the conservation equation in three-dimensional interface phenomena, which gives the solution of the level-set equation coupled with a re-initialization procedure for the physical interface problems governed by conservation law. It may be an extensional formulation for a diffusive solution of the level-set equation.

Free Research Field

機械工学