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Mathematical investigation of mass transfer for atmospheric pollutants into a fixed droplet with aqueous chemistry

Abstract : The objective of this article is to investigate some of the classical parameterizations used for modeling mass transfer between interstitial gas and cloud droplets for aqueous-phase models in Air Pollution Modeling [ Schwartz, 1986 ]. After an appropriate scaling of the initial model (a set of two coupled Partial Differential Equations), we apply the singular perturbation theory and some theoretical results of Reaction-Diffusion models with large diffusion coefficients. This justifies the use of classical parameterizations in a large range of parameters. Moreover, we propose a new parameterization of mass transfer, taking into account aqueous-phase diffusion limitations. This parameterization is based on a double-film model and may have an impact for some species, as it is illustrated with a simple box model
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https://hal.inria.fr/inria-00527180
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Submitted on : Monday, October 18, 2010 - 2:51:12 PM
Last modification on : Friday, February 4, 2022 - 3:08:11 AM

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Bruno Sportisse, Rafik Djouad. Mathematical investigation of mass transfer for atmospheric pollutants into a fixed droplet with aqueous chemistry. Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2003, 108 (D2), pp.4073. ⟨10.1029/2001JD001336⟩. ⟨inria-00527180⟩

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