Development of a Numerical Method for Thermal Environment in Urban Area by Stabilized Finite Element Method

Abstract

This paper presents a numerical method for the evaluation of thermal environmental flow in urban area by a stabilized finite element method based on the SUPG/PSPG method. The incompressible Navier-Stokes equation based on the Boussinesq approximation is employed for the governing equations. The LES based on Smagorinsky model is employed for the turbulence model. The heat balance model using the Sun's insolation is employed to determine the temperature on the ground surface. The present method is applied to several benchmark problems in order to investigate the validity of the method.