Numerical simulation of aqueous-phase atmospheric models : use of a non-autonomous rosenbrock method

Abstract : We present in this article an efficient numerical solver for the time integration of atmospheric multiphase chemical kinetics. This solver is based on a second-order Rosenbrock scheme, that has been proposed by Verwer et al. (SIAM J. Sci. Comput. 20 (4) (1999) 1456) for gas-phase chemical kinetics. We show that the stiff time dependence of cloudy events (through liquid water content) has to be solved by the numerical scheme and a non-autonomous version has to be used. We benchmark the non-autonomous ROS2 scheme with the classical LSODE solver for two kinetic schemes. For detailed schemes such as RADM2, the speed-up is of magnitude 5 for the same accuracy.
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Article dans une revue
Atmospheric environment, Elsevier, 2002, 36 (5), pp.873-879. 〈10.1016/S1352-2310(01)00497-6〉
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https://hal.inria.fr/inria-00532762
Contributeur : Brigitte Briot <>
Soumis le : jeudi 4 novembre 2010 - 13:44:23
Dernière modification le : mardi 29 mai 2018 - 12:50:31

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Rafik Djouad, Bruno Sportisse, Nicole Audiffren. Numerical simulation of aqueous-phase atmospheric models : use of a non-autonomous rosenbrock method. Atmospheric environment, Elsevier, 2002, 36 (5), pp.873-879. 〈10.1016/S1352-2310(01)00497-6〉. 〈inria-00532762〉

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