Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 17, issue 17
Articles | Volume 17, issue 17
https://doi.org/10.5194/acp-17-10477-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-10477-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 17, issue 17
Research article
 | 
07 Sep 2017
Research article |  | 07 Sep 2017

An efficient approach for treating composition-dependent diffusion within organic particles

Simon O'Meara, David O. Topping, Rahul A. Zaveri, and Gordon McFiggans

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Latest update: 20 Nov 2024
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Short summary
To simulate particle-phase diffusion, an analytical expression is desired because it takes less calculation time than a differential equation. Here a correction is found for the analytical solution for when diffusivity is dependent on composition, thereby making it more widely applicable than before. Consequently, we are able to more realistically evaluate the rate limitation (if any) imposed by particle-phase diffusion on component partitioning between the gas and particle phase.
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