Modeling Dry Deposition of Aerosol Particles on Rough Surfaces

0369313 - ÚCHP 2012 RIV US eng J - Journal Article
Hussein, T. - Smolík, Jiří - Kerminen, V.-M. - Kulmala, M.
Modeling Dry Deposition of Aerosol Particles on Rough Surfaces.
Aerosol Science and Technology. Roč. 46, č. 1 (2012), s. 44-59. ISSN 0278-6826. E-ISSN 1521-7388
Institutional research plan: CEZ:AV0Z40720504
Keywords : aerosol particles * dry deposition * transport
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 2.780, year: 2012

Here we introduce a new, and yet simple, physical approach to account for the influence of surface roughness on the dry deposition velocity. The approach relies on a hybrid parameter that combines the surface roughness height and the peak-to-peak distance between roughness elements. Our new approach is able to predict the deposition velocity accurately, being superior to many of the earlier models which over predict deposition velocities by a factor as high as 25. In addition our approach is more general and covering a wide size-range of aerosol particle diameter (0.001–100 μm).
Permanent Link: http://hdl.handle.net/11104/0203409