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...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Mohammad Shokrollahi [verfasserIn] khosrow hosseini [verfasserIn] seyed Farhad Mousavi [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Persisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: پژوهشهای زیرساختهای عمرانی - University of Qom, 2024, 5(2019), 1, Seite 165-176 |
|---|---|
| Übergeordnetes Werk: |
volume:5 ; year:2019 ; number:1 ; pages:165-176 |
| Links: |
|---|
| DOI / URN: |
10.22091/cer.2019.4691.1162 |
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DOAJ095835024 |
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| 520 | |a 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. | ||
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10.22091/cer.2019.4691.1162 doi (DE-627)DOAJ095835024 (DE-599)DOAJ55edbe0da9294b1cab9d95931764d08f DE-627 ger DE-627 rakwb per TA630-695 Mohammad Shokrollahi verfasserin aut Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier 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. fishway velocity profile turbulence rest area flow-3d Structural engineering (General) khosrow hosseini verfasserin aut seyed Farhad Mousavi verfasserin aut In پژوهشهای زیرساختهای عمرانی University of Qom, 2024 5(2019), 1, Seite 165-176 (DE-627)DOAJ09066969X 2783140X nnns volume:5 year:2019 number:1 pages:165-176 https://doi.org/10.22091/cer.2019.4691.1162 kostenfrei https://doaj.org/article/55edbe0da9294b1cab9d95931764d08f kostenfrei https://cer.qom.ac.ir/article_1446_69891b03378e36fa95a2cbe04cfd1907.pdf kostenfrei https://doaj.org/toc/2783-140X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 5 2019 1 165-176 |
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| title_sort |
numerical modeling of the effect of changing the geometry of fishway structure on the flow-through its vertical slot |
| callnumber |
TA630-695 |
| title_auth |
Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| abstract |
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. |
| abstractGer |
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. |
| abstract_unstemmed |
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. |
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| title_short |
Numerical Modeling of the Effect of Changing the Geometry of Fishway Structure on the Flow-Through Its Vertical Slot |
| url |
https://doi.org/10.22091/cer.2019.4691.1162 https://doaj.org/article/55edbe0da9294b1cab9d95931764d08f https://cer.qom.ac.ir/article_1446_69891b03378e36fa95a2cbe04cfd1907.pdf https://doaj.org/toc/2783-140X |
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| author2 |
khosrow hosseini seyed Farhad Mousavi |
| author2Str |
khosrow hosseini seyed Farhad Mousavi |
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DOAJ09066969X |
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TA - General and Civil Engineering |
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c |
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| doi_str |
10.22091/cer.2019.4691.1162 |
| callnumber-a |
TA630-695 |
| up_date |
2024-07-03T16:52:29.174Z |
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7.402895 |