A stencil-like volume of fluid (VOF)method for tracking free interface  

作　　者：李孝伟 樊俊飞 

机构地区：[1]Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University [2]Research Institute (R&D Center),Bao Shah Iron and Steel Co.Ltd.

出　　处：《Applied Mathematics and Mechanics(English Edition)》2008年第7期881-888,共8页应用数学和力学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (No.10672097);Shanghai Leading Academic Discipline Project (No.Y0103)

摘　　要：A stencil-like volume of fluid （VOF） method is proposed for tracking free interface. A stencil on a grid cell is worked out according to the normal direction of the interface, in which only three interface positions are possible in 2D cases, and the interface can be reconstructed by only requiring the known local volume fraction information. On the other hand, the fluid-occupying-length is defined on each side of the stencil, through which a unified fluid-occupying volume model and a unified algorithm can be obtained to solve the interface advection equation. The method is suitable for the arbitrary geometry of the grid cell, and is extendible to 3D cases. Typical numerical examples show that the current method can give ＂sharp＂ results for tracking free interface.A stencil-like volume of fluid （VOF） method is proposed for tracking free interface. A stencil on a grid cell is worked out according to the normal direction of the interface, in which only three interface positions are possible in 2D cases, and the interface can be reconstructed by only requiring the known local volume fraction information. On the other hand, the fluid-occupying-length is defined on each side of the stencil, through which a unified fluid-occupying volume model and a unified algorithm can be obtained to solve the interface advection equation. The method is suitable for the arbitrary geometry of the grid cell, and is extendible to 3D cases. Typical numerical examples show that the current method can give ＂sharp＂ results for tracking free interface.

关 键 词：volume of fluid （VOF） method fluid volume fraction function interfacere-construction 

分 类 号：O351.1[理学—流体力学]