Název:
On the thermally stratified atmospheric flow modeling
Autoři:
Sládek, Ivo ; Kozel, K. ; Jaňour, Zbyněk Typ dokumentu: Příspěvky z konference Konference/Akce: Topical Problems of Fluid Mechanics 2010, Praha (CZ), 2010-02-10 / 2010-02-11
Rok:
2010
Jazyk:
eng
Abstrakt: The paper deals with a numerical study devoted to thermally /indifferently stratified atmospheric boundary layer flow. The main objective is related to definition of the model and flow conditions as well as to presentation of some first numerical results concerning the flow over selected hill configuration under the indifferent thermal conditions. The mathematical model is based on the system of Reynolds-averaged Navier Stokes (RANS)equations closed by two-equation k-e turbulence model together with wall functions.The thermal stratification is modeled using transport equation for the potential temperature. The finite volume method and the explicit Runge-Kutta time integration method are utilized for the numerics. A 2D-hill test case with a rough wall has been chosen to perform numerical test.
Klíčová slova:
atmospheric boundary layer; finite volume method; turbulence model Číslo projektu: CEZ:AV0Z20760514 (CEP) Zdrojový dokument: Topical Problems of Fluid Mechanics 2010, ISBN 978-80-87012-25-3
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0192328