Handeling 3D Model Of A Street For An Urban Thermal Study With The Finite Element Method

Abstract

We are interested in the thermal behaviour of an urban scene. Two techniques are used to characterize this phenomenon: thermography and computational simulation. Their parallel use leads towards a better understanding of the involved physical parameters. First, we present the geometry of the scene and its implementation in the CAST3M finite element software (El Ganaoui, 2005), developed by the CEA (French Alternative Energies and Atomic Energy Commission). Then, we present a development to highlight the influences of thermography on the assumptions of numerical simulation. The results allow evaluating the physical material parameters meaning, particularly, the radiant specular component of the windows.