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Journal Articles Atmospheric Environment Year : 2002

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.

Dates and versions

inria-00532762 , version 1 (04-11-2010)

Identifiers

Cite

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