Supercritical flow in circular-conduit bends
Burno tečenje u krivini provodnika kružnog poprečnog preseka
Апстракт
Complex flow pattern occurring in a circular conduit bend with supercritical flow is analyzed. The research was done by a scale (physical hydraulic) model, and a numerical model developed in ANSYS (Fluent) surrounding. The results obtained by physical (scale) and numerical models are presented, with comments and recommendations for their application. Simple empirical relationships were developed, describing the effects of the bend curvature, bend deflection angle and approaching flow conditions (depth and Froude number upstream from the bend) on the considered flow.
Analizirano je složeno strujanje koje nastaje u krivini kružnog provodnika pri burnom toku. Ispitivanja su urađena na hidrauličkom fizičkom modelu, kao i na numeričkom modelu, zasnovanom na programskom paketu ANSYS (Fluent). Prikazani su rezultati dobijeni na pomenuta dva modela, sa komentarima i preporukama za njihovu primenu. Predložene su jednostavne zavisnosti kojima se opisuje uticaj zakrivljenosti, skretnog ugla i prilaznih uslova tečenja (dubina i Frudov broj uzvodno od krivine) na razmatrano tečenje.
Кључне речи:
supercritical flow / horizontal bend / closed conduit / scale model / numerical model / burno tečenje / horizontalna krivina / zatvoreni provodnik / fizički model / numerički modelИзвор:
Vodoprivreda, 2013, 45, 1-3, 123-137Издавач:
- Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd
Институција/група
GraFarTY - JOUR AU - Kolarević, Milena AU - Savić, Ljubodrag AU - Kapor, Radomir AU - Mladenović, Nikola PY - 2013 UR - https://grafar.grf.bg.ac.rs/handle/123456789/504 AB - Complex flow pattern occurring in a circular conduit bend with supercritical flow is analyzed. The research was done by a scale (physical hydraulic) model, and a numerical model developed in ANSYS (Fluent) surrounding. The results obtained by physical (scale) and numerical models are presented, with comments and recommendations for their application. Simple empirical relationships were developed, describing the effects of the bend curvature, bend deflection angle and approaching flow conditions (depth and Froude number upstream from the bend) on the considered flow. AB - Analizirano je složeno strujanje koje nastaje u krivini kružnog provodnika pri burnom toku. Ispitivanja su urađena na hidrauličkom fizičkom modelu, kao i na numeričkom modelu, zasnovanom na programskom paketu ANSYS (Fluent). Prikazani su rezultati dobijeni na pomenuta dva modela, sa komentarima i preporukama za njihovu primenu. Predložene su jednostavne zavisnosti kojima se opisuje uticaj zakrivljenosti, skretnog ugla i prilaznih uslova tečenja (dubina i Frudov broj uzvodno od krivine) na razmatrano tečenje. PB - Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd T2 - Vodoprivreda T1 - Supercritical flow in circular-conduit bends T1 - Burno tečenje u krivini provodnika kružnog poprečnog preseka EP - 137 IS - 1-3 SP - 123 VL - 45 UR - https://hdl.handle.net/21.15107/rcub_grafar_504 ER -
@article{ author = "Kolarević, Milena and Savić, Ljubodrag and Kapor, Radomir and Mladenović, Nikola", year = "2013", abstract = "Complex flow pattern occurring in a circular conduit bend with supercritical flow is analyzed. The research was done by a scale (physical hydraulic) model, and a numerical model developed in ANSYS (Fluent) surrounding. The results obtained by physical (scale) and numerical models are presented, with comments and recommendations for their application. Simple empirical relationships were developed, describing the effects of the bend curvature, bend deflection angle and approaching flow conditions (depth and Froude number upstream from the bend) on the considered flow., Analizirano je složeno strujanje koje nastaje u krivini kružnog provodnika pri burnom toku. Ispitivanja su urađena na hidrauličkom fizičkom modelu, kao i na numeričkom modelu, zasnovanom na programskom paketu ANSYS (Fluent). Prikazani su rezultati dobijeni na pomenuta dva modela, sa komentarima i preporukama za njihovu primenu. Predložene su jednostavne zavisnosti kojima se opisuje uticaj zakrivljenosti, skretnog ugla i prilaznih uslova tečenja (dubina i Frudov broj uzvodno od krivine) na razmatrano tečenje.", publisher = "Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd", journal = "Vodoprivreda", title = "Supercritical flow in circular-conduit bends, Burno tečenje u krivini provodnika kružnog poprečnog preseka", pages = "137-123", number = "1-3", volume = "45", url = "https://hdl.handle.net/21.15107/rcub_grafar_504" }
Kolarević, M., Savić, L., Kapor, R.,& Mladenović, N.. (2013). Supercritical flow in circular-conduit bends. in Vodoprivreda Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd., 45(1-3), 123-137. https://hdl.handle.net/21.15107/rcub_grafar_504
Kolarević M, Savić L, Kapor R, Mladenović N. Supercritical flow in circular-conduit bends. in Vodoprivreda. 2013;45(1-3):123-137. https://hdl.handle.net/21.15107/rcub_grafar_504 .
Kolarević, Milena, Savić, Ljubodrag, Kapor, Radomir, Mladenović, Nikola, "Supercritical flow in circular-conduit bends" in Vodoprivreda, 45, no. 1-3 (2013):123-137, https://hdl.handle.net/21.15107/rcub_grafar_504 .