There is a class of material processing simulators which require solution of the diffusion equation over a surface which is evolving due to some physical or chemical process related to the concentration of the diffusing species. Because of its explicit and unconditionally stable nature, the transmis
An investigation of the different TLM configurations used in the modelling of diffusion problems
β Scribed by Rachida Ait-sadi; Phillip Naylor
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 808 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0894-3370
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β¦ Synopsis
Abstract
The commonly used transmissionβline modelling (TLM) network of oneβdimensional diffusion problems often results in unwanted oscillations. Two different TLM configurations (line boundary (LB) and resistance boundary (RB)), are investigated with some techniques necessary to reduce the oscillations. Comparisons between the various LB and RB models addressed in this paper, indicate that, in general, twoβdimensional TLM models produce consistently more accurate results.
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