Testing of numerical advection schemes and splitting techniques used in pollution dispersion modelling on an analytic solution Online publication date: Mon, 10-May-2004
by Dimiter Atanassov, Tatiana Spassova
International Journal of Environment and Pollution (IJEP), Vol. 20, No. 1/2/3/4/5/6, 2003
Abstract: In the real nature the processes of pollutants advection, their release in and removal from the atmosphere take place simultaneously. In dispersion modelling, these processes are considered separately, one after another within a time step, which causes the generation of some specific errors. Two types of numerical advection schemes, typical Eulerian and semi-Lagrangian one, are considered. The numerical results are compared to the stationary analytic solution of the 1D advection equation with incorporation of emission and deposition. Several approaches to reduce the errors of the numerical solutions are discussed. Analytic solutions for the air concentration and deposition for some characteristic cases (different emission and deposition space distributions) are prepared in a shape, convenient to be used as a kit for testing the advection schemes and splitting techniques.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Pollution (IJEP):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook