3D contaminant transport by GFEM with hexahedral elements

被引：3

作者：

Romao, Estaner Claro ^{[1
]}

Mendes de Moura, Luiz Felipe ^{[2
]}

机构：

[1] Univ Fed Itajuba, Itabira, MG, Brazil

[2] Univ Estadual Campinas, Fac Mech Engn, Thermal & Fluids Engn Dept, Campinas, SP, Brazil

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2013年 / 42卷

关键词：

GFEM; Hexahedral elements; Error norms; Convective problems; EQUATION; GALERKIN;

D O I：

10.1016/j.icheatmasstransfer.2012.10.016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work aims to apply the GFEM (Galerkin Finite Element Method), with hexahedral elements in concentration transport problems in a three-dimensional domain. Since these problems are highly convective in nature, a study of the GFEM with 8 and 27-node hexahedron is performed. For such, an application with an analytical solution is performed by examining the norms L-2 and L-infinity from the error in the numerical solution; especially considering the variation of the velocity components, and the geometry of the proposal. Finally, the application involved the transport of an ammonia concentration through a tubulation containing holes caused by ruptures, which allows for inward air flow; thus, in this study, the influence of the variation of hole quantities, the maximum drainage velocity, and the geometry employed are analyzed. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：43 / 50

页数：8

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