Error estimates of splitting Galerkin methods for heat and sweat transport in textile materials

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

41 Scopus Citations
View graph of relations

Author(s)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)88-111
Journal / PublicationSIAM Journal on Numerical Analysis
Volume51
Issue number1
Online published2 Jan 2013
Publication statusPublished - 2013

Link(s)

Abstract

This paper is concerned with a single-component model of heat and vapor (sweat) transport through three-dimensional porous textile materials with phase change, which is described by a nonlinear, degenerate, and strongly coupled parabolic system. An uncoupled (splitting) Galerkin method with semi-implicit Euler scheme in time direction is proposed for the system. In this method, a linearized scheme is applied for the approximation to Darcy's velocity simultaneously in the mass and energy equations, which leads to physical conservation of the method in the flow convection. The existence and uniqueness of solution of the finite element system is proved and the optimal error estimate in an energy norm is obtained. Numerical results are presented to confirm our theoretical analysis and are compared with experimental data. © 2013 Society for Industrial and Applied Mathematics.

Research Area(s)

  • Error estimates, Fibrous porous media, Heat and sweat transfer, Splitting FEM, Strongly coupled

Download Statistics

No data available