Abstract
In air pollution dispersion models, typically systems of millions of equations that describe wind transport, chemistry and vertical mixing have to be integrated in time. To have more accurate results over specific fixed areas of interest---usually highly polluted areas with intensive emissions---a local grid refinement or zoom is often required. For the wind transport part of the models, i.e.\ for finite volume discretizations of the transport equation, we propose a zoom technique that is positive, mass-conservative and allows to use smaller time steps as enforced by the CFL restriction in the zoom regions only.
Original language | English |
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Title of host publication | Finite volumes for complex applications : problems and perspectives |
Subtitle of host publication | international symposium, July 19-22, 1999, Duisburg, Germany |
Editors | Roland Vilsmeier, Fayssal Benkhaldoun, Dieter Hänel |
Publisher | Hermes |
Pages | 499-506 |
Number of pages | 8 |
ISBN (Print) | 2-7462-0057-0 |
Publication status | Published - 1999 |
Event | 2nd International Symposium on Finite Volumes for Complex Applications 1999: Problems and Perspectives - Duisburg, Germany Duration: 19 Jul 1999 → 22 Jul 1999 Conference number: 2 |
Conference
Conference | 2nd International Symposium on Finite Volumes for Complex Applications 1999 |
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Country | Germany |
City | Duisburg |
Period | 19/07/99 → 22/07/99 |