Dynamic Pressure Fluctuations in Stepped Three-Side Spillway
One type of outlet works in dams are Three-side spillways that despite of their hydraulic limitations and construction problems, they were being selected, in storage dams, as best option under specific topographical conditions. Considerable energy losses and great turbulence are hydraulic characteri...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Babol Noshirvani University of Technology
2012-01-01
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| Series: | Iranica Journal of Energy and Environment |
| Subjects: | |
| Online Access: | http://www.ijee.net/Journal/ijee/vol3/no1/10.pdf |
| _version_ | 1797228592509222912 |
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| author | Hamed Taghizadeh Seyed Ali Akbar Salehi Neyshabour Firouz Ghasemzadeh |
| author_facet | Hamed Taghizadeh Seyed Ali Akbar Salehi Neyshabour Firouz Ghasemzadeh |
| author_sort | Hamed Taghizadeh |
| collection | DOAJ |
| description | One type of outlet works in dams are Three-side spillways that despite of their hydraulic limitations and construction problems, they were being selected, in storage dams, as best option under specific topographical conditions. Considerable energy losses and great turbulence are hydraulic characteristic of these spillways. Hydraulic performance with targeting to reduce pressure fluctuations in side channel is an important issue in this type of spillways design. In this study, effect of stepping of three-side spillway’s Ogee profile on the dynamic pressure fluctuation have been investigated using finite volume method and RNG turbulence model. The turbulence intensity as a dimensionless number was used for quantitative study of dynamic pressure fluctuations. The results showed that the proposed form of ogee profile caused a significant reduction in turbulence intensity within the side channel. On the other hand, the stepped Ogee profiles of three-side spillways caused to simple construction and ease of operation. |
| first_indexed | 2024-04-24T14:59:09Z |
| format | Article |
| id | doaj.art-ba37ee96d1764f4892cdbd47fa9106a2 |
| institution | Directory Open Access Journal |
| issn | 2079-2115 2079-2123 |
| language | English |
| last_indexed | 2024-04-24T14:59:09Z |
| publishDate | 2012-01-01 |
| publisher | Babol Noshirvani University of Technology |
| record_format | Article |
| series | Iranica Journal of Energy and Environment |
| spelling | doaj.art-ba37ee96d1764f4892cdbd47fa9106a22024-04-02T16:30:17ZengBabol Noshirvani University of TechnologyIranica Journal of Energy and Environment2079-21152079-21232012-01-01317887Dynamic Pressure Fluctuations in Stepped Three-Side SpillwayHamed TaghizadehSeyed Ali Akbar Salehi NeyshabourFirouz GhasemzadehOne type of outlet works in dams are Three-side spillways that despite of their hydraulic limitations and construction problems, they were being selected, in storage dams, as best option under specific topographical conditions. Considerable energy losses and great turbulence are hydraulic characteristic of these spillways. Hydraulic performance with targeting to reduce pressure fluctuations in side channel is an important issue in this type of spillways design. In this study, effect of stepping of three-side spillway’s Ogee profile on the dynamic pressure fluctuation have been investigated using finite volume method and RNG turbulence model. The turbulence intensity as a dimensionless number was used for quantitative study of dynamic pressure fluctuations. The results showed that the proposed form of ogee profile caused a significant reduction in turbulence intensity within the side channel. On the other hand, the stepped Ogee profiles of three-side spillways caused to simple construction and ease of operation.http://www.ijee.net/Journal/ijee/vol3/no1/10.pdfThree-side spillwayStepped SpillwayDynamic pressure fluctuationRNG turbulent model |
| spellingShingle | Hamed Taghizadeh Seyed Ali Akbar Salehi Neyshabour Firouz Ghasemzadeh Dynamic Pressure Fluctuations in Stepped Three-Side Spillway Iranica Journal of Energy and Environment Three-side spillway Stepped Spillway Dynamic pressure fluctuation RNG turbulent model |
| title | Dynamic Pressure Fluctuations in Stepped Three-Side Spillway |
| title_full | Dynamic Pressure Fluctuations in Stepped Three-Side Spillway |
| title_fullStr | Dynamic Pressure Fluctuations in Stepped Three-Side Spillway |
| title_full_unstemmed | Dynamic Pressure Fluctuations in Stepped Three-Side Spillway |
| title_short | Dynamic Pressure Fluctuations in Stepped Three-Side Spillway |
| title_sort | dynamic pressure fluctuations in stepped three side spillway |
| topic | Three-side spillway Stepped Spillway Dynamic pressure fluctuation RNG turbulent model |
| url | http://www.ijee.net/Journal/ijee/vol3/no1/10.pdf |
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