Author(s)

T. Bodnar, Ph. Fraunie, K. Kozel & L. Benes

Abstract

Numerical modelling of pollution dispersion in complex terrain T. Bodnari'2, Ph. Fraunie\ K. Kozel^ & L. Benes^ * Department of Technical Mathematics, Faculty of Mechanical Engineering, Czech Technical University of Prague, Czech Republic ^Laboratoire de Bondages Electromagnetiques de L 'Environnement Terrestre, Universite de Toulon et du Var, France Abstract The aim of the presented work is to develop a mathematical model for pre- diction of flow and pollution dispersion in Atmospheric Boundary Layer (ABL). Three different mathematical models based on the system RA-NS equations and its simplifications are introduced and solved. Systems are completed by the transport equations for passive impurities and potential temperature. A simple turbulence closure is used. Resulting systems of governing equations are solved by explicite finite-volume or semi-implicit finite-difference schemes on structured boundary fitted mesh. Results of simple test computations are presented and discuss

Keywords