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Modelizatin and numerical simulation of atmospheric aerosols dynamics
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Debry, Edouard (2004) Modelizatin and numerical simulation of atmospheric aerosols dynamics. PhD thesis, ENPC. AbstractChemical-transport models are now able to describe in a realistic way gaseous polluants behavior in the atmosphere. Nevertheless atmospheric pollution also exists as a fine suspended particles, called aerosols which interact with gaseous phase, solar radiation, and have their own dynamic behavior.
The goal of this thesis is the modelization and numerical simulation of the General Dynamic Equation of aerosols (GDE). Part I deals with some theoritical aspects of aerosol modelization. Part II is dedicated to the building of one size resolved aerosol model (SIREAM). In part III we perfome the reduction of this model in order to use it in dispersion models as POLAIR3D.
Several modelization issues are still opened: organic aerosol matter, externaly mixed aerosols, coupling with turbulent mixing, and nano-particles.
| Item Type: | PhD Thesis (PhD) |
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| Thesis Supervisor: | Bergametti, Gilles and Sportisse, Bruno |
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| Date: | December 2004 |
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| Board of examiners: | Pandis, Spyros and Sandu, Adrian and Rosset, Robert and Plion, Pierre and Bergametti, Gilles and Sportisse, Bruno |
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| Collection (Fonds): | ENPC |
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| Institution: | ENPC |
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| Subjects: | 6. Chemistry, Physical Chemistry and Chemical Engineering |
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| Uncontrolled Keywords: | Atmospheric aerosols, particle size distribution (PSD), Chemical composition (inorganic, Organic), Local, Global equilibrium, Thermodynamic models, Isorropia, Brownian coagulation, Condensation, Evaporation, Nucleation, General Dynamic Equation (GDE), Discrete, Continuous representation, Internally, Externally mixed models, Analytical solutions, Stochastic methods, Reference solution, mass flow algorithm (MFA), Weighted residuals methods, Coupling, Splitting, Sectionnal methods, Size binning, Eulerian, Lagrangian methods, Redistribution on a fix grid, Slow, Fast systems, Reduction, Bulk-equilibrium method, Size-resolved methods, SIze REselved Aerosol Model (SIREAM), Aérosols atmosphériques, distribution en taille (PSD), Composition chimique (inorganique, Organique), équilibre local, Global, Modèles thermodynamiques, Isorropia, Coagulation brownienne, Condensation, évaporation, Nucléation, Equation Générale de la Dynamique (GDE), Représentation discrète, Continue, Modèles de mélange interne, Externe, Solutions analytiques, Méthodes stochastiques, Solution de référence, mass flow algorithm (MFA), Formulations variationnelles, Couplage, Découplage, Méthodes sectionnelles, Size binning, Méthodes eulériennes, Lagrangiennes, Redistribution sur une grille fixe, Systèmes lents, Rapides, Réduction, Méthode bulk-equilibrium, Méthodes d'équilibres résolues en tailles, SIze REsolved Aerosol Model (SIREAM) |
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