Articles | Volume 17, issue 17
https://doi.org/10.5194/acp-17-10477-2017
https://doi.org/10.5194/acp-17-10477-2017
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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Cited articles

Barley, M. H., Topping, D., Lowe, D., Utembe, S., and McFiggans, G.: The sensitivity of secondary organic aerosol (SOA) component partitioning to the predictions of component properties – Part 3: Investigation of condensed compounds generated by a near-explicit model of VOC oxidation, Atmos. Chem. Phys., 11, 13145–13159, https://doi.org/10.5194/acp-11-13145-2011, 2011.
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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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