Numerical simulation of forward problem for electrical capacitance tomography using element-free Galerkin method

被引：10

作者：

Zhang, Lifeng ^{[1
]}

Tian, Pei ^{[1
]}

Jin, Xiuzhang ^{[1
]}

Tong, Weiguo ^{[1
]}

机构：

[1] N China Elect Power Univ, Sch Control Sci & Engn, Baoding 071003, Peoples R China

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2010年 / 34卷 / 05期

关键词：

Electrical capacitance tomography; Forward problem; Finite element method; Element-free method; Moving least-squares approximation; IMAGE-RECONSTRUCTION ALGORITHMS; MULTIPHASE FLOW MEASUREMENT; COMPUTATION; MODEL; ECT;

D O I：

10.1016/j.enganabound.2009.11.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrical capacitance tomography (ECT) is a new measurement technology, which is often used to identify two-phase/multi-phase flow regime and investigate the solid distribution in circulating fluidized bed. It is composed of forward problem and inverse problem. Usually, forward problem is solved using finite element method (FEM). Element-free Galerkin method (EFGM) is one of the meshless methods developed recently. In order to obtain the numerical solution using EFGM, a shape function is constructed by moving least-squares (MLS) approximation, a variational equation weak form of the studied problem is used to deduce the discrete equation, and Lagrange multipliers are used to satisfy essential boundary conditions. In EFGM, only nodal data are necessary compared with FEM. In this paper, EFGM was used to solve forward problem and simulation results showed EFGM has high accuracy and its post-processing is easy. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：477 / 482

页数：6

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