Three-Dimensional Micro-Meteorological Modeling In Urban Areas: Surface Energy Balance and Pollutant Dispersion

Yongfeng Qu
Eurobios Scientific Computing Branch, Research and development engineer, Eurobios, Gentilly, France

Series: Earth Sciences in the 21st Century
BISAC: SCI042000



Volume 10

Issue 1

Volume 2

Volume 3

Special issue: Resilience in breaking the cycle of children’s environmental health disparities
Edited by I Leslie Rubin, Robert J Geller, Abby Mutic, Benjamin A Gitterman, Nathan Mutic, Wayne Garfinkel, Claire D Coles, Kurt Martinuzzi, and Joav Merrick


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Local atmospheric simulations of real city neighborhoods are important to study for urban climate, thermal and wind comfort, and local air quality, including pollution hot spots such as tunnel heads, near a motorway or a busy crossing. When the wind is weak, the thermal and radiative effects become more important together with flow stratification that can inhibit turbulence and mixing in some conditions.

In order to take into account atmospheric radiation and the thermal effects of the buildings in simulations of atmospheric flow and pollutant dispersion in urban areas, a three-dimensional atmospheric thermal-radiative scheme in the atmospheric module of the open-source Computational Fluid Dynamics (CFD) model has been developed. The simulation of realistic atmospheric conditions in urban areas made possible by this work can be used for various applications. The author describes the development of this model and presents several results by comparing field data.
(Imprint: Nova)



1. Introduction

2. Model Design

3. Application I: Idealized Urban Areas

4. Application II: Real Urban Areas

5. Application III: Pollutant Dispersion

6. Conclusion



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