Stepped spillway flow: Comparison of numerical and scale models
Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela
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 damSource:
FME Transactions, 2014, 42, 3, 218-223Publisher:
- Univerzitet u Beogradu - Mašinski fakultet, Beograd
Funding / 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)
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Institution/Community
GraFarTY - JOUR AU - Zindović, Budo AU - Savić, Ljubodrag AU - Kapor, Radomir AU - Mladenović, Nikola PY - 2014 UR - https://grafar.grf.bg.ac.rs/handle/123456789/609 AB - 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. AB - 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. PB - Univerzitet u Beogradu - Mašinski fakultet, Beograd T2 - FME Transactions T1 - Stepped spillway flow: Comparison of numerical and scale models T1 - Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela EP - 223 IS - 3 SP - 218 VL - 42 DO - 10.5937/fmet1403218z ER -
@article{ author = "Zindović, Budo and Savić, Ljubodrag and Kapor, Radomir and Mladenović, Nikola", year = "2014", 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.", publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd", journal = "FME Transactions", title = "Stepped spillway flow: Comparison of numerical and scale models, Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela", pages = "223-218", number = "3", volume = "42", doi = "10.5937/fmet1403218z" }
Zindović, B., Savić, L., Kapor, R.,& Mladenović, N.. (2014). Stepped spillway flow: Comparison of numerical and scale models. in FME Transactions Univerzitet u Beogradu - Mašinski fakultet, Beograd., 42(3), 218-223. https://doi.org/10.5937/fmet1403218z
Zindović B, Savić L, Kapor R, Mladenović N. Stepped spillway flow: Comparison of numerical and scale models. in FME Transactions. 2014;42(3):218-223. doi:10.5937/fmet1403218z .
Zindović, Budo, Savić, Ljubodrag, Kapor, Radomir, Mladenović, Nikola, "Stepped spillway flow: Comparison of numerical and scale models" in FME Transactions, 42, no. 3 (2014):218-223, https://doi.org/10.5937/fmet1403218z . .