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Stepped spillway flow: Comparison of numerical and scale models

Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela

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2014
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Authors
Zindović, Budo
Savić, Ljubodrag
Kapor, Radomir
Mladenović, Nikola
Article (Published version)
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Abstract
This paper deals with flow modelling of the stepped spillway for the Bogovina dam. The analysis was conducted using three approaches: scalemodelling, empirical equations and numerical modelling. An acceptable agreement was achieved between the empirical equations and the numerical model results, while both of them exhibit considerable differences when compared to scale-model. These discrepancies can be contributed to the difficulties in modelling the process of air-entrainment. Since air-entrainment is important for providing good estimates, existing empirical equations as well as numerical models require further improvements.
Tema rada je modeliranje strujnog polja na stepenastom brzotoku brane Bogovina. Analiza je sprovedena na rezultatima dobijenih pomoću: fizičkog modela, empirijskih jednačina i numeričkog modela. Slaganja rezultata empirijskih jednačina i numeričkog modela su u prihvatljivim granicama, dok je primećeno njihovo značajno odstupanje od rezultata merenja na fizičkom modelu. Uzrok ovih razlika je proces samo-aeracije mlaza. Budući da je ovaj proces važan za ovaj vid strujanja, nepohodno je poboljšati postojeće empirijske zavisnosti i numeričke modele.
Keywords:
RCC dam / stepped spillway / scale model / numerical model / Bogovina dam
Source:
FME Transactions, 2014, 42, 3, 218-223
Publisher:
  • Univerzitet u Beogradu - Mašinski fakultet, Beograd
Projects:
  • Monitoring and Modeling of Rivers and Reservoirs (MORE) - Physical, Chemical, Biological and Morphodynamic Parameters (RS-37009)
  • Urban Drainage Systems as Key Infrastructure in Cities and Towns (RS-37010)
  • Research and development of equipment and systems for industrial production, storage and processing vegetables and fruits (RS-35043)

DOI: 10.5937/fmet1403218z

ISSN: 1451-2092

Scopus: 2-s2.0-84905904071
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URI
http://grafar.grf.bg.ac.rs/handle/123456789/609
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  • Radovi istraživača / Researcher's publications
  • Катедра за хидротехнику и водно-еколошко инжењерство
  • Катедра за материјале и конструкције
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