Počet záznamů: 1
Modelling of supercritical turbulent flow over an inclined backward-facing step in a open channel
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SYSNO ASEP 0361278 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Modelling of supercritical turbulent flow over an inclined backward-facing step in a open channel Tvůrce(i) Příhoda, Jaromír (UT-L) RID, ORCID
Zubík, P. (CZ)
Šulc, J. (CZ)
Sedlář, M. (CZ)Celkový počet autorů 4 Zdroj.dok. Engineering Mechanics 2011. - Prague : Institute of Thermomechanics AS CR, v. v. i., 2011 / Fuis V. - ISBN 978-80-87012-33-8 Rozsah stran s. 495-498 Poč.str. 4 s. Akce Engineering Mechanics 2011 /17./ Datum konání 09.05.2011-12.05.2011 Místo konání Svratka Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova open channel flow ; inclined backward-facing step ; supercritical flow Vědní obor RIV BK - Mechanika tekutin CEP GA103/09/0977 GA ČR - Grantová agentura ČR CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000313492700117 Anotace The contribution deals with the experimental and numerical modelling of supercritical turbulent flow in an open channel with an inclined backward-facing step on its bottom. The step with the height 100 mm and the inclination angle 20 deg was placed in the water channel of the cross-section 200x200 mm. Experiments were carried out by means of the PIV and LDA measuring techniques. Numerical simulations were executed by the commercial software ANSYS CFX 12.0. Numerical results obtained by the two-equation SST model and the EARSM model completed by transport equations for turbulent energy and specific dissipation rate were compared with experimental data. The modelling was concentrated particularly on the flow pattern near the step including the possible flow separation and the corresponding changes of free surface. The agreement of numerical results obtained by means of the EARSM model with experimental data is quite good. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2012
Počet záznamů: 1