Numerical simulation of 3D flow in right-angled confluences with bed elevation discordance in both converging channels
2016
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Конференцијски прилог (Објављена верзија)
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The paper studies a combined effect of bed steps (BS) in both converging channels on the 3D flow in a confluence with alpha = 90 degrees. Nine combinations of bed elevation discordance ratio values in the two channels are analysed. It is shown that: 1) a portion of the tributary flow is redirected upstream and that the vertical flow deflection in the lower half of water column is significantly reduced when the BS in the main river is higher than that in the tributary, 2) the shape of the recirculation zone (RZ) and the delay in its development are strongly governed by the presence of the BS in the tributary, whereas the BS in the main river only affects the size of the RZ and the dynamics of its distortion and 3) both river banks are endangered by erosion in confluences with BSs in both converging channels.
Кључне речи:
river confluence / bed elevation discordance / 3D numerical modelИзвор:
12th International Conference On Hydroinformatics (Hic 2016) - Smart Water for the Future, 2016, 154, 1026-1033Издавач:
- Elsevier Ltd
Финансирање / пројекти:
- Унапређење одрживости и конкурентности у органској биљној и сточарској производњи применом нових технологија и инпута (RS-MESTD-Technological Development (TD or TR)-31031)
DOI: 10.1016/j.proeng.2016.07.592
ISSN: 1877-7058
WoS: 000385793200138
Scopus: 2-s2.0-84997783099
Институција/група
GraFarTY - CONF AU - Đorđević, Dejana AU - Stojnić, Ivan PY - 2016 UR - https://grafar.grf.bg.ac.rs/handle/123456789/778 AB - The paper studies a combined effect of bed steps (BS) in both converging channels on the 3D flow in a confluence with alpha = 90 degrees. Nine combinations of bed elevation discordance ratio values in the two channels are analysed. It is shown that: 1) a portion of the tributary flow is redirected upstream and that the vertical flow deflection in the lower half of water column is significantly reduced when the BS in the main river is higher than that in the tributary, 2) the shape of the recirculation zone (RZ) and the delay in its development are strongly governed by the presence of the BS in the tributary, whereas the BS in the main river only affects the size of the RZ and the dynamics of its distortion and 3) both river banks are endangered by erosion in confluences with BSs in both converging channels. PB - Elsevier Ltd C3 - 12th International Conference On Hydroinformatics (Hic 2016) - Smart Water for the Future T1 - Numerical simulation of 3D flow in right-angled confluences with bed elevation discordance in both converging channels EP - 1033 SP - 1026 VL - 154 DO - 10.1016/j.proeng.2016.07.592 ER -
@conference{ author = "Đorđević, Dejana and Stojnić, Ivan", year = "2016", abstract = "The paper studies a combined effect of bed steps (BS) in both converging channels on the 3D flow in a confluence with alpha = 90 degrees. Nine combinations of bed elevation discordance ratio values in the two channels are analysed. It is shown that: 1) a portion of the tributary flow is redirected upstream and that the vertical flow deflection in the lower half of water column is significantly reduced when the BS in the main river is higher than that in the tributary, 2) the shape of the recirculation zone (RZ) and the delay in its development are strongly governed by the presence of the BS in the tributary, whereas the BS in the main river only affects the size of the RZ and the dynamics of its distortion and 3) both river banks are endangered by erosion in confluences with BSs in both converging channels.", publisher = "Elsevier Ltd", journal = "12th International Conference On Hydroinformatics (Hic 2016) - Smart Water for the Future", title = "Numerical simulation of 3D flow in right-angled confluences with bed elevation discordance in both converging channels", pages = "1033-1026", volume = "154", doi = "10.1016/j.proeng.2016.07.592" }
Đorđević, D.,& Stojnić, I.. (2016). Numerical simulation of 3D flow in right-angled confluences with bed elevation discordance in both converging channels. in 12th International Conference On Hydroinformatics (Hic 2016) - Smart Water for the Future Elsevier Ltd., 154, 1026-1033. https://doi.org/10.1016/j.proeng.2016.07.592
Đorđević D, Stojnić I. Numerical simulation of 3D flow in right-angled confluences with bed elevation discordance in both converging channels. in 12th International Conference On Hydroinformatics (Hic 2016) - Smart Water for the Future. 2016;154:1026-1033. doi:10.1016/j.proeng.2016.07.592 .
Đorđević, Dejana, Stojnić, Ivan, "Numerical simulation of 3D flow in right-angled confluences with bed elevation discordance in both converging channels" in 12th International Conference On Hydroinformatics (Hic 2016) - Smart Water for the Future, 154 (2016):1026-1033, https://doi.org/10.1016/j.proeng.2016.07.592 . .