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A hybrid improved complex variable element-free Galerkin method for three-dimensional potential problems

delete2017-11-01
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程珩 (Heng Cheng)
彭妙娟 cover
彭妙娟 (Miaojuan Peng)
程玉民 cover
程玉民 (Yumin Cheng) *
DOI:10.1016/j.enganabound.2017.08.001delete
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Abstract

Abstract

En 中文
Combining the dimension splitting method with the improved complex variable element-free Galerkin method, a hybrid improved complex variable element-free Galerkin (H-ICVEFG) method is presented for three-dimensional potential problems. Using the dimension splitting method, a three-dimensional potential problem is transformed into a series of two-dimensional ones which can be solved with the improved complex variable element-free Galerkin (ICVEFG) method. In the ICVEFG method for each two-dimensional problem, the improved complex variable moving least-square (ICVMLS) approximation is used to obtain the shape functions, and the penalty method is used to apply the essential boundary conditions. Finite difference method is used in the one-dimensional direction. And Galerkin weak form of three-dimensional potential problem is used to obtain the final discretized equations. Then the H-ICVEFG method for three-dimensional potential problems is presented. Four numerical examples are given to show that the new method has higher computational efficiency. (C) 2017 Elsevier Ltd. All rights reserved.
Keywords:
Improved complex variable moving
least-square approximation
Improved complex variable element-free
Galerkin method
Dimension splitting method
Finite difference method
Hybrid improved complex variable element-free Galerkin method
Potential problem
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Engineering Analysis with Boundary Elements cover
Engineering Analysis with Boundary Elements
IF:
4.1
Papers:
5.8K
Citations:
9.4K

Organization

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shanghai university
Scholars:
3.9W
Papers: 2.7W
Citations: 52