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CFD simulation of flow behind overflooded obstacle
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SYSNO ASEP 0495504 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název CFD simulation of flow behind overflooded obstacle Tvůrce(i) Velísková, Y. (SK)
Chára, Zdeněk (UH-J) SAI, ORCID, RID
Schügerl, J. (SK)
Dulovičová, R. (SK)Zdroj.dok. Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X
Roč. 66, č. 4 (2018), s. 448-456Poč.str. 9 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova velocity profile ; computational fluid dynamics (CFD) ; free surface flow ; bridge ; ADV ; laboratory flume ; numerical simulation ; RANS models Vědní obor RIV BK - Mechanika tekutin Obor OECD Fluids and plasma physics (including surface physics) CEP GA15-18870S GA ČR - Grantová agentura ČR Institucionální podpora UH-J - RVO:67985874 UT WOS 000448800800011 EID SCOPUS 85061399351 DOI 10.2478/johh-2018-0028 Anotace This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2019
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