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Mathematical and Numerical Study of the 3D Atmospheric Boundary Layer Flows Including Pollution Dispersion
Author(s) -
Benes L.,
Bodnar T.,
Janour Z.,
Kozel K.,
Sladek I.
Publication year - 2003
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200310161
Subject(s) - reynolds averaged navier–stokes equations , terrain , turbulence , boundary layer , planetary boundary layer , mechanics , flow (mathematics) , atmospheric dispersion modeling , closure (psychology) , dispersion (optics) , mathematics , meteorology , geology , geometry , physics , geography , air pollution , chemistry , cartography , organic chemistry , optics , economics , market economy
The paper presents a mathematical and numerical investigation of the atmospheric boundary layer (ABL) flow over 3D complex terrain part of which is represented by the real topography of the Krkonose mountains located in the Czech Republic. The flow is supposed to be turbulent, non‐stratified, viscous, incompressible and stationary. Two mathematical models have been formulated. The first model is based upon the RANS equations in the conservative form and the second one uses the Boussinesq approximation of RANS equations and takes the non‐conservative form. Also pollution dispersion over the complex 3D terrain has been considered in both models. The problem closure is achieved by an algebraic turbulence model and given boundary conditions.