Skip to Main content Skip to Navigation
Theses

Contribution à la modélisation thermo-aéraulique du microclimat urbain. Caractérisation de l'impact de l'eau et de la végétation sur les conditions de confort en espaces extérieurs

Abstract : In summer, temperatures in cities may rise, thereby inducing the so-called « urban heat island » and tremendous consequences on outdoor comfort, health risks, pollutant emission and energy consumption. Replacing vegetation and moist surfaces by concrete or asphalt may enhance these problems Therefore, the aim of this thesis is to quantify the impact of vegetation and water on urban microclimate and comfort through numerical modelling. In the first part, a scientific literature review considers various topics applied to our problem such as urban microclimate, simulations, urbanism, urban forestry and outdoor thermal comfort. This information is relevant to define and interpret further numerical modelling. Numerical simulations based on the coupling of the SOLENE thermal program and the N3S CFD code are proposed to model wind flow, air and surface temperatures. The theoretical principles, hypothesis and coupling methodology are presented here. This set of numerical tools is combined in order to help urban or landscape planners, architects and engineers, to analyse the impacts of different projects on microclimate and on outdoor thermal comfort, under hot summer conditions. To illustrate this approach, an open space in Montpellier (southern France) called the "Place du Millenaire" and designed by Ricardo Bofill is studied, considering various cases (no vegetation, actual vegetation and vegetation in 30 years). The comparative results demonstrate improvements of urban form, microclimate and outdoor thermal comfort.
Complete list of metadatas

Cited literature [93 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00490049
Contributor : Martine Chazelas <>
Submitted on : Monday, June 7, 2010 - 5:53:43 PM
Last modification on : Friday, September 14, 2018 - 9:56:06 AM
Document(s) archivé(s) le : Friday, September 17, 2010 - 1:14:03 PM

Identifiers

  • HAL Id : tel-00490049, version 1

Collections

CNRS | AAU | UNAM | UGA | CERMA

Citation

Jérôme Vinet. Contribution à la modélisation thermo-aéraulique du microclimat urbain. Caractérisation de l'impact de l'eau et de la végétation sur les conditions de confort en espaces extérieurs. Sciences de l'ingénieur [physics]. Université de Nantes, 2000. Français. ⟨tel-00490049⟩

Share

Metrics

Record views

1883

Files downloads

6035