Linearized Finite Difference Methods: Application To Nonlinear Heat Conduction Problems
Price
Free (open access)
Transaction
Volume
12
Pages
10
Published
1996
Size
1,010 kb
Paper DOI
10.2495/HT960501
Copyright
WIT Press
Author(s)
C.M. Garcia-Lopez & J.I. Ramos
Abstract
Partially-linearized, approximate factorization methods for multidimen- sional, nonlinear reaction-diffusion problems are presented. These methods first discretize the time derivatives and linearize the equations, and then factorize the multidimensional operators into a sequence of one-dimensional ones. Depending on how the Jacobian matrix is approximated, fully cou- pled, sequentially coupled or uncoupled, linear, one-dimensional problems are obtained. It is shown that the approximate errors of the linearized tech- niques presented here are nearly the same, whereas their accuracy depends on the approximation to the Jacobian matrix. 1 Introduction There exists a variety of finite difference and finite element methods for nonlinear heat conduction problem
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