中国舰船研究Issue(4)：39-45,54,8.DOI:10.3969/j.issn.1673-3185.2015.04.006
无限区域二维势流直接边界元法精度分析
Precision analysis of the two-dimensional potential flow problem in an infinite region with the direct boundary element method
摘要
Abstract
The Boundary Element Method(BEM),as a key numerical method,has been widely applied in many fields. However,the research on the Direct Boundary Element Method(DBEM)for ship hydrody⁃namic numerical calculation problems is still insufficient,especially when it comes to the ship hydrody⁃namic potential flow theory. The general method-‘panel method’- is based on Hess-Smith method, which is an Indirect Boundary Element Method(IBEM)whose major flaws exist in both theory and numeri⁃cal calculation. This paper,based on the ship hydrodynamic potential flow theory,adopts DBEM to calcu⁃late the example of two-dimensional unbounded potential flow around a cylinder,and analyzes the influ⁃ence of the boundary element discrete forms and the numerical integral methods on the calculation accura⁃cy. The results carried out by Matlab clearly indicate that using the constant element and Romberg algo⁃rithm method could yield high calculation speed and accuracy.关键词
直接边界元法/势流理论/边界离散/数值积分Key words
Direct Boundary Element Method (DBEM)/potential flow theory/boundary discretization/numerical integration分类
交通工程引用本文复制引用
韩玉超,卢晓平,王中..无限区域二维势流直接边界元法精度分析[J].中国舰船研究,2015,(4):39-45,54,8.基金项目
国家部委基金资助项目 （）
