Název:
Numerical simulations of flow over stationary deposit
Autoři:
Chára, Zdeněk ; Vlasák, Pavel ; Kysela, Bohuš ; Konfršt, Jiří Typ dokumentu: Příspěvky z konference Konference/Akce: 15th International Freight Pipeline society symposium, Praha (CZ), 2014-06-24 / 2014-06-27
Rok:
2014
Jazyk:
eng
Abstrakt: The paper deals with a water flow in a horizontal, circular pipe of inner diameter 40 mm with a stationary deposit. The deposit was formed by spheres of diameter d=6 mm. The thickness of the deposit was about two sphere diameters. The flow was experimentally studied by the PIV method and COMSOL Multiphysics 4.4 was used as tool for numerical simulations as well. Two approaches were used to create the stationary deposit. In the first one was the deposit was replaced by a rough wall with different values of the roughness parameter ks. In the second case the deposit was created from the identical spherical particles. The results of the simulations and the experimental data are compared.
Klíčová slova:
numerical simulations; PIV method; stationary deposit Číslo projektu: GAP105/10/1574 (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: 15th International Freight Pipeline society symposium, ISBN 978-80-87117-12-5
Instituce: Ústav pro hydrodynamiku AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný na vyžádání prostřednictvím repozitáře Akademie věd. Původní záznam: http://hdl.handle.net/11104/0234693