Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/107421
Title: | Numerical Research of Flows into Gullies with Different Outlet Locations | Authors: | Carvalho, Rita Lopes, Pedro Leandro, Jorge David, Luis M. |
Keywords: | drainage systems; gullies; linking-element; discharge capacity; OpenFOAM R; VOF; SSTk-w turbulence model | Issue Date: | 2019 | Publisher: | MDPI | Project: | UID/MAR/04292/2019 | Serial title, monograph or event: | Water (Switzerland) | Volume: | 11 | Issue: | 4 | Abstract: | Gullies are sewer inlets placed in pavements usually covered by bar grates. They are the most common linking-element used to drain a wide range of flows from surface runoff into the buried drainage system. Their hydraulic behavior and their overall hydraulic performance is dependent on the flow conditions, the gully dimension, geometry, and location of the outlet device. Herein a numerical research based on Volume Of Fluid (VOF) to detect the interface, and on the Shear Stress Transport SSTk-w turbulence model was conducted to study the importance of the outlet location and characterize flows through them in drainage conditions. Results provided detailed information about flow features, discharge coefficients, and efficiencies for different outlet locations. The authors identified three different regimes, R1, R2, and R3, and concluded that the outlet location influences the velocity field along the gully, the discharge coefficient, and the drainage efficiency. This allows for the estimation of uncertainty and its variation for different outlet positions. | URI: | https://hdl.handle.net/10316/107421 | ISSN: | 2073-4441 | DOI: | 10.3390/w11040794 | Rights: | openAccess |
Appears in Collections: | I&D MARE - Artigos em Revistas Internacionais |
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Numerical-research-of-flows-into-gullies-with-different-outlet-locationsWater-Switzerland.pdf | 10.96 MB | Adobe PDF | View/Open |
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