Friday, July 17

Numerical Algorithms in Air Quality Modeling

10:30 AM-12:30 PM
Room: Sidney Smith 2127

Numerical air quality modeling primarily deals with the approximate solution of photochemical dispersion models. These models are used to enhance the understanding of the chemical composition of the atmosphere and, in particular, the relation between anthropogenic emissions and the resulting distributions of primary and secondary polluting species. At the heart of such models lie systems of time-dependent, three-space dimensional PDEs describing advective transport, turbulent diffusive transport, many (photo)chemical reactions, emissions and depositions. Each single species introduces a PDE and modern models that easily contain more than a 100 species. Numerical solutions involve advection schemes, stiff ODE solvers, operator splitting, adaptive grids and, of course, high-performance computing and parallelism. The speakers in this minisymposium will present recent research results, focusing on algorithmic issues.

Organizer: Jan Verwer
Centre for Mathematics and Computer Science (CWI), The Netherlands
10:30 Atmospheric Chemistry Applications to Parallel Computers
Douglas A. Rotman, Lawrence Livermore National Laboratory
11:00 Analysis of Operator Splitting for Advection-Diffusion-Reaction Problems
Debby Lanser, Center for Mathematics and Computer Science (CWI), The Netherlands; and Jan Verwer, Organizer
11:30 Numerical Modeling of Atmospheric Dispersion Problems on Unstructured Spatial Meshes
Martin Berzins, A. Tomlin, G. Hart, X. Y. Luo and J. M. Ware, University of Leeds, United Kingdom
12:00 Reducing Procedures for Chemical Kinetics
Bruno Sportisse and Rafik Djouad, CERMICS, Ecole Nationale des Ponts et Chaussees, France

Program Program Overview Program-at-a-Glance Program Updates Speaker Index Registration Hotel Transportation

LMH Created: 3/19/98; MMD Updated: 4/6/98