Idrissi, Mohamed Salah ; Ben Salah, Nabil ; Chrigui, Mouldi (2019)
Numerical modelling of air pollutant dispersion in complex urban areas: investigation of city parts from downtowns Hanover and Frankfurt.
In: Fluids, 4 (3)
doi: 10.3390/fluids4030137
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Hazardous gas dispersion within a complex urban environment in 1:1 scaled geometry of German cities, Hanover and Frankfurt, is predicted using an advanced turbulence model. The investigation involves a large group of real buildings with a high level of details. For this purpose, Computer Aided Design (CAD) of two configurations are cleaned, then fine grids meshed in. Weather conditions are introduced using power law velocity profiles at inlets boundary. The investigation focused on the effects of release locations and material properties of the contaminants (e.g., densities) on the convection/diffusion of pollutants within complex urban area. Two geometries demonstrating different topologies and boundaries conditions are investigated. Pollutants are introduced into the computational domain through chimney and/or pipe leakages in various locations. Simulations are carried out using Large Eddy Simulation (LES) turbulence model and species transport for the pollutants. The weather conditions are accounted for using a logarithmic velocity profile at inlets. CH₄ and CO₂ distributions, as well as turbulence quantities and velocity profiles, show important influences on the dispersion behavior of the hazardous gas.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Idrissi, Mohamed Salah ; Ben Salah, Nabil ; Chrigui, Mouldi |
| Art des Eintrags: | Bibliographie |
| Titel: | Numerical modelling of air pollutant dispersion in complex urban areas: investigation of city parts from downtowns Hanover and Frankfurt |
| Sprache: | Englisch |
| Publikationsjahr: | 2019 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Fluids |
| Jahrgang/Volume einer Zeitschrift: | 4 |
| (Heft-)Nummer: | 3 |
| Kollation: | 17 Seiten |
| DOI: | 10.3390/fluids4030137 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Hazardous gas dispersion within a complex urban environment in 1:1 scaled geometry of German cities, Hanover and Frankfurt, is predicted using an advanced turbulence model. The investigation involves a large group of real buildings with a high level of details. For this purpose, Computer Aided Design (CAD) of two configurations are cleaned, then fine grids meshed in. Weather conditions are introduced using power law velocity profiles at inlets boundary. The investigation focused on the effects of release locations and material properties of the contaminants (e.g., densities) on the convection/diffusion of pollutants within complex urban area. Two geometries demonstrating different topologies and boundaries conditions are investigated. Pollutants are introduced into the computational domain through chimney and/or pipe leakages in various locations. Simulations are carried out using Large Eddy Simulation (LES) turbulence model and species transport for the pollutants. The weather conditions are accounted for using a logarithmic velocity profile at inlets. CH₄ and CO₂ distributions, as well as turbulence quantities and velocity profiles, show important influences on the dispersion behavior of the hazardous gas. |
| Freie Schlagworte: | buildings, urban area, pollution dispersion, turbulence, Large Eddy Simulation (LES) |
| Zusätzliche Informationen: | This article belongs to the Special Issue Recent Numerical Advances in Fluid Mechanics |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Energie- und Kraftwerkstechnik (EKT) |
| Hinterlegungsdatum: | 22 Jan 2024 09:09 |
| Letzte Änderung: | 22 Jan 2024 09:09 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Numerical Modelling of Air Pollutant Dispersion in Complex Urban Areas: Investigation of City Parts from Downtowns Hanover and Frankfurt. (deposited 19 Jan 2024 14:24)
- Numerical modelling of air pollutant dispersion in complex urban areas: investigation of city parts from downtowns Hanover and Frankfurt. (deposited 22 Jan 2024 09:09) [Gegenwärtig angezeigt]
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