Numerical modelling of competitive components transport with non-linear adsorption

✍ Scribed by Sheng, Daichao; Smith, David W.

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 234 KB
• Volume: 24
• Category: Article
• ISSN: 0363-9061
• DOI: 10.1002/(sici)1096-9853(200001)24:1<47::aid-nag53>3.0.co;2-5

✦ Synopsis

A characteristic "nite element (CFE) algorithm for modelling contaminant transport problems coupled with non-linear competitive adsorption is presented. An alternative algorithm, termed as the transport-equilibrium Petrov}Galerkin (TEPG) methods in this paper, is also presented for comparison. Through analyses of a number of examples with Peclet number ranging from zero to in"nity, it is shown that the CFE algorithm is very competitive with the middle}point TEPG method in terms of accuracy, stability and e$ciency. The fully explicit and fully implicit TEPG methods are found to be less appropriate for transport problems coupled with non-linear equilibrium equations.