Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot
In the present study, hydraulics of vertical slot is simulated, using Flow-3D. k-ε turbulence model had the most performance among different turbulence models. Next, the velocity pattern, volume of fish rest-area, and flow turbulence in the channel were analyzed in order to evaluate the performance...
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| Format: | Article |
| Language: | fas |
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University of Qom
2019-08-01
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| Series: | پژوهشهای زیرساختهای عمرانی |
| Subjects: | |
| Online Access: | https://cer.qom.ac.ir/article_1446_69891b03378e36fa95a2cbe04cfd1907.pdf |
| _version_ | 1797232973408370688 |
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| author | Mohammad Shokrollahi khosrow hosseini seyed Farhad Mousavi |
| author_facet | Mohammad Shokrollahi khosrow hosseini seyed Farhad Mousavi |
| author_sort | Mohammad Shokrollahi |
| collection | DOAJ |
| description | In the present study, hydraulics of vertical slot is simulated, using Flow-3D. k-ε turbulence model had the most performance among different turbulence models. Next, the velocity pattern, volume of fish rest-area, and flow turbulence in the channel were analyzed in order to evaluate the performance of fishway with different geometries. In this regard, the influence of geometry on the performance of fishway is investigated. Results showed that by decreasing the ratio of the length of the large wall to the small wall, the longitudinal component of velocity was decreased by an average of 25.11%. By increasing the end of the large-wall angle with respect to the pool wall, the volume of the rest area was increased by 3%. By increasing the end of the large-wall angle with respect to the pool wall parameter, the turbulence energy was increased by an average of 30.66%. In general, the ratio of the length of the large wall to the small wall has a greater effect on reducing the flow velocity for the fish to cross the fishway and also by increasing the end of the large-wall angle with respect to the pool wall, the rest area of the fish and turbulence energy has increased. |
| first_indexed | 2024-04-24T16:08:47Z |
| format | Article |
| id | doaj.art-55edbe0da9294b1cab9d95931764d08f |
| institution | Directory Open Access Journal |
| issn | 2783-140X |
| language | fas |
| last_indexed | 2024-04-24T16:08:47Z |
| publishDate | 2019-08-01 |
| publisher | University of Qom |
| record_format | Article |
| series | پژوهشهای زیرساختهای عمرانی |
| spelling | doaj.art-55edbe0da9294b1cab9d95931764d08f2024-03-31T19:57:43ZfasUniversity of Qomپژوهشهای زیرساختهای عمرانی2783-140X2019-08-015116517610.22091/cer.2019.4691.11621446Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical SlotMohammad Shokrollahi0khosrow hosseini1seyed Farhad Mousavi2M.Sc. Student, Department of Civil Engineering, University of Semnan.Associate Professor, Department of Civil Engineering, University of Semnan.Professor, Department of Civil Engineering, University of Tabriz.In the present study, hydraulics of vertical slot is simulated, using Flow-3D. k-ε turbulence model had the most performance among different turbulence models. Next, the velocity pattern, volume of fish rest-area, and flow turbulence in the channel were analyzed in order to evaluate the performance of fishway with different geometries. In this regard, the influence of geometry on the performance of fishway is investigated. Results showed that by decreasing the ratio of the length of the large wall to the small wall, the longitudinal component of velocity was decreased by an average of 25.11%. By increasing the end of the large-wall angle with respect to the pool wall, the volume of the rest area was increased by 3%. By increasing the end of the large-wall angle with respect to the pool wall parameter, the turbulence energy was increased by an average of 30.66%. In general, the ratio of the length of the large wall to the small wall has a greater effect on reducing the flow velocity for the fish to cross the fishway and also by increasing the end of the large-wall angle with respect to the pool wall, the rest area of the fish and turbulence energy has increased.https://cer.qom.ac.ir/article_1446_69891b03378e36fa95a2cbe04cfd1907.pdffishwayvelocity profileturbulencerest areaflow-3d |
| spellingShingle | Mohammad Shokrollahi khosrow hosseini seyed Farhad Mousavi Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot پژوهشهای زیرساختهای عمرانی fishway velocity profile turbulence rest area flow-3d |
| title | Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| title_full | Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| title_fullStr | Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| title_full_unstemmed | Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| title_short | Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| title_sort | numerical modeling of the effect of changing the geometry of fishway structure on the flow through its vertical slot |
| topic | fishway velocity profile turbulence rest area flow-3d |
| url | https://cer.qom.ac.ir/article_1446_69891b03378e36fa95a2cbe04cfd1907.pdf |
| work_keys_str_mv | AT mohammadshokrollahi numericalmodelingoftheeffectofchangingthegeometryoffishwaystructureontheflowthroughitsverticalslot AT khosrowhosseini numericalmodelingoftheeffectofchangingthegeometryoffishwaystructureontheflowthroughitsverticalslot AT seyedfarhadmousavi numericalmodelingoftheeffectofchangingthegeometryoffishwaystructureontheflowthroughitsverticalslot |