计算力学学报2016，Vol.33Issue(3)：328-334,7.DOI:10.7511/jslx201603008
等参管单元及其在热传导问题边界元法中的应用
Isoparametric tube elements and their application in heat conduction BEM analysis
摘要
Abstract
When using boundary element method (BEM ) to solve practical engineering problems ,consid‐erable error comes from the discretization error .To overcome this problem ,an algorithm for using isoparametric tube elements in BEM is proposed based on the Lagrange interpolation formulation .This type of elements can well model the geometry with tube shapes and interpolate physical quantities defined on the tube surface .As a result ,the discretization error can be reduced considerably .In addition , a new technique for eliminating singularities involved in the boundary integrals is also presented in the intrinsic plane when using the proposed isoparametric tube elements in BEM .Numerical examples show that the proposed elements have the advantages of less element discretization and high computational accuracy .关键词
等参管单元/边界元法/奇异积分/单元子分法Key words
isoparametric tube element/boundary element method/singular integral/element sub-division method分类
能源科技引用本文复制引用
高效伟,曾文浩,崔苗..等参管单元及其在热传导问题边界元法中的应用[J].计算力学学报,2016,33(3):328-334,7.基金项目
国家自然科学基金（11172055，11202045）资助项目． （）
