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Indexed by:期刊论文

Date of Publication:2015-01-01

Journal:FINITE ELEMENTS IN ANALYSIS AND DESIGN

Included Journals:SCIE、EI

Volume:93

Issue:C

Page Number:42-49

ISSN No.:0168-874X

Key Words:Cyclic symmetry; Element-free Galerkin scaled boundary method; Heat transfer; Block-circulant; Partitioning algorithm

Abstract:An Element-free Galerkin scaled boundary method (EFG-SBM) based partitioning algorithm is proposed for the 2D steady-state heat transfer analysis of cyclically symmetrical structures. The eigenvalue matrices of EFG-SBM for the rotationally periodic system are proved to be block-circulant under a symmetry-adapted reference coordinate system. Furthermore, both the eigenvalue and system equations can be partitioned into a number of smaller independent problems which are solved by a partitioning algorithm. Numerical examples are given to verify the proposed algorithm in term of computing accuracy and efficiency. (C) 2014 Elsevier B.V. All rights reserved.