Geodesic
Model for settling and deposition of particulates emitted from an elevated source
Matematičeskoe modelirovanie, Tome 15 (2003) no. 3, pp. 122-128.

Voir la notice de l'article provenant de la source Math-Net.Ru

Numerical solutions are obtained for gravitational settling and deposition velocities. The deposition of pollutants on ground surface is accounted for by including a gravitational settling term in transport equation and applying absorptive boundary condition at ground surface. A mixed finite difference scheme is used to solve the mathematical model considering advection, diffusion, settling and deposition. Wind velocity is approximated by a step function. Convergent approximation of wind profile provides compatibility with Eulerian grid spacing. Effect of gravitational settling velocity is quite prominent below the source. Due to its effect concentration increases considerably and it decreases above the source height. The effect of deposition is observed near the ground only. Deposition decreases concentration near the ground though there is no significant change in concentration of pollutant far from the ground. 
@article{MM_2003_15_3_a9,
     author = {U. Arora},
     title = {Model for settling and deposition of particulates emitted from an elevated source},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {122--128},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2003_15_3_a9/}
}
TY  - JOUR
AU  - U. Arora
TI  - Model for settling and deposition of particulates emitted from an elevated source
JO  - Matematičeskoe modelirovanie
PY  - 2003
SP  - 122
EP  - 128
VL  - 15
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MM_2003_15_3_a9/
LA  - ru
ID  - MM_2003_15_3_a9
ER  - 
%0 Journal Article
%A U. Arora
%T Model for settling and deposition of particulates emitted from an elevated source
%J Matematičeskoe modelirovanie
%D 2003
%P 122-128
%V 15
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM_2003_15_3_a9/
%G ru
%F MM_2003_15_3_a9
U. Arora. Model for settling and deposition of particulates emitted from an elevated source. Matematičeskoe modelirovanie, Tome 15 (2003) no. 3, pp. 122-128. http://geodesic.mathdoc.fr/item/MM_2003_15_3_a9/

[1] Ermak D. L., “An analytical model for air pollutant transport and deposition from a point source”, Atmos. Envir., 11 (199), 231–237 | DOI

[2] Yanenko N. N., The method of fractional step, Springer, Berlin, 1971 | MR | Zbl

[3] Richtmyer R. D., Morton K. W., Difference methods for initial value problem, Interscience, New York, 1967 | MR | Zbl

[4] Runca E., “Numerical treatment of time dependent advection and diffusion of air pollutants”, Atmos. Envir., 9 (1975), 69–80 | DOI