Current position: Home >> Scientific Research >> Paper Publications

带源参数热传导问题的基于滑动Kriging插值的MLPG法

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2013-06-25

Journal: 力学季刊

Included Journals: CSCD、ISTIC、PKU

Volume: 34

Issue: 2

Page Number: 175-180

ISSN: 0254-0053

Key Words: 滑动Kriging插值;无网格局部Petrov-Galerkin;Heaviside分段函数;向后差分法;热传导问题;源参数

Abstract: 利用基于滑动Kriging插值的无网格局部Petrov-Galerkin (MLPG)法来求解带源参数的二维热传导问题,推导了相应的离散方程.由于滑动Kriging插值法构造的形函数满足Kronecker Delta特性,因此可以直接施加本质边界条件.在离散过程中采用Heaviside分段函数作为局部弱形式的权函数,时间域则通过向后差分法进行离散,这一处理过程中刚度矩阵只涉及到边界积分,而没有涉及到区域积分.最后通过算例验证了本方法的有效性.

Prev One:Scaled boundary FEM solution of 3D liquid sloshing in containers with complex axisymmetric geometry

Next One:High frequency S wave envelope synthesis using a multiple nonisotropic scattering model: application to aftershocks from the 2008 Wenchuan earthquake