Premium
High‐order artificial boundary conditions for ideal axisymmetric irrotational flow around 3D obstacles
Author(s) -
Zheng Chunxiong,
Han Houde
Publication year - 2002
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.467
Subject(s) - conservative vector field , boundary (topology) , bounded function , mathematics , rotational symmetry , domain (mathematical analysis) , ideal (ethics) , boundary value problem , mathematical analysis , flow (mathematics) , compressibility , incompressible flow , geometry , mechanics , physics , law , political science
In this paper the numerical solution for ideal irrotational incompressible flow around axisymmetric 3D obstacles is discussed with the artificial boundary method. By introducing an artificial boundary, we divide the exterior unbounded domain into a bounded part and an unbounded part. After setting up a proper artificial boundary condition, we get an approximate reduced problem defined on the bounded part. Both non‐local and local artificial boundary conditions are designed. Numerical experiment is also presented, and its result demonstrates the effectiveness of these artificial boundary conditions. Copyright © 2002 John Wiley & Sons, Ltd.