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Different splitting techniques with application to air pollution models

Dimov, I., Farago, I., Havasi, A. and Zlatev, Z. (2008) Different splitting techniques with application to air pollution models. International Journal of Environment and Pollution, 32 (2). pp. 174-199. ISSN 0957-4352

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Splitting techniques are commonly used when large-scale models, which appear in different fields of science and engineering, are treated numerically. Four types of splitting procedures are defined and discussed. The problem of the choice of a splitting procedure is investigated. Several numerical tests, by which the influence of the splitting errors on the accuracy of the results is studied, are given. It is shown that the splitting errors decrease linearly when (1) the splitting procedure is of first order and (2) the splitting errors are dominant. Three examples for splitting procedures used in all large-scale air pollution models are presented. Numerical results obtained by a particular air pollution model, Unified Danish Eulerian Model (UNI-DEM), are given and analysed.

Item Type:Article
ID Code:15206
Uncontrolled Keywords:air pollution models, splitting techniques, error analysis, order of the splitting procedure, partial differential equations, ordinary differential equations , SCHEMES
Additional Information:5th International Conference on Large-Scale Scientific Computations (LSSC '05) Sozopol, BULGARIA 5-10 Jun 2005

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