Finite volume method with the Soner boundary condition for computing the signed distance function on polyhedral meshes

被引:3
|
作者
Hahn, Jooyoung [1 ]
Mikula, Karol [2 ]
Frolkovic, Peter [2 ]
Basara, Branislav [1 ]
机构
[1] AVL List GmbH, Adv Simulat Technol, Hans List Pl 1, A-8020 Graz, Austria
[2] Slovak Univ Technol Bratislava, Fac Civil Engn, Dept Math & Descript Geometry, Radlinskeho 11, Bratislava, Slovakia
关键词
cell-centered finite volume method; eikonal equation; no-inflow boundary condition; polyhedral meshes; signed distance function; Soner boundary condition; FAST SWEEPING METHODS; LEVEL SET METHOD; DIFFERENTIAL-EQUATION; EIKONAL EQUATION; NORMAL DIRECTION; EXCITATION;
D O I
10.1002/nme.6888
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A cell-centered finite volume method with the Soner boundary condition is proposed to compute the signed distance function from a given surface in general three-dimensional (3D) computational domains discretized by polyhedral cells. The governing equation is the bidirectional time-relaxed eikonal equation and the proposed numerical method is based on the semi-implicit inflow-implicit and outflow-explicit scheme. Numerical experiments confirm the second order accuracy in L1 and L infinity-norms for chosen examples with smooth solutions. The inclusion of the Soner boundary condition has proven necessary for numerical solutions to reach the viscosity solution of the eikonal equation starting from various initial conditions in general 3D domains.
引用
收藏
页码:1057 / 1077
页数:21
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