Brink as a device for measurement discharge for partially filled circular channel
Many devices are fabricated to measure discharge in circular open channel. The flow over a free overall (brink phenomenon) can be used as a device to measure discharge in open channels with known the end depth. This paper presents mathematical and experimental studies to evaluate efficiency of the b...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2013-06-01
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| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447912000676 |
| _version_ | 1829522250147037184 |
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| author | I.M.H. Rashwan M.I. Idress |
| author_facet | I.M.H. Rashwan M.I. Idress |
| author_sort | I.M.H. Rashwan |
| collection | DOAJ |
| description | Many devices are fabricated to measure discharge in circular open channel. The flow over a free overall (brink phenomenon) can be used as a device to measure discharge in open channels with known the end depth. This paper presents mathematical and experimental studies to evaluate efficiency of the brink as device of measuring low flow rate in horizontal, mild and adverse circular open channels. The general mathematical model is derived using momentum, discharge and Froude number equations for horizontal, mild and adverse slopes for circular open channels. A proposed mathematical model is calibrated by previous and present experimental data. Equation gives accurate discharge from known end water depth is presented. The results of the laboratory experiments showed that the circular flumes can be successfully used to measure the low flow rate in open channels. A relationship of discharge to the end depth for horizontal smooth circular open channels is proposed. |
| first_indexed | 2024-12-16T15:29:27Z |
| format | Article |
| id | doaj.art-e9dd4ace10494fc7a191b19a82b84cec |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-12-16T15:29:27Z |
| publishDate | 2013-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-e9dd4ace10494fc7a191b19a82b84cec2022-12-21T22:26:24ZengElsevierAin Shams Engineering Journal2090-44792013-06-014213314110.1016/j.asej.2012.08.003Brink as a device for measurement discharge for partially filled circular channelI.M.H. RashwanM.I. IdressMany devices are fabricated to measure discharge in circular open channel. The flow over a free overall (brink phenomenon) can be used as a device to measure discharge in open channels with known the end depth. This paper presents mathematical and experimental studies to evaluate efficiency of the brink as device of measuring low flow rate in horizontal, mild and adverse circular open channels. The general mathematical model is derived using momentum, discharge and Froude number equations for horizontal, mild and adverse slopes for circular open channels. A proposed mathematical model is calibrated by previous and present experimental data. Equation gives accurate discharge from known end water depth is presented. The results of the laboratory experiments showed that the circular flumes can be successfully used to measure the low flow rate in open channels. A relationship of discharge to the end depth for horizontal smooth circular open channels is proposed.http://www.sciencedirect.com/science/article/pii/S2090447912000676End depth ratioFlow measurementCircularOpen channelPartially filled |
| spellingShingle | I.M.H. Rashwan M.I. Idress Brink as a device for measurement discharge for partially filled circular channel Ain Shams Engineering Journal End depth ratio Flow measurement Circular Open channel Partially filled |
| title | Brink as a device for measurement discharge for partially filled circular channel |
| title_full | Brink as a device for measurement discharge for partially filled circular channel |
| title_fullStr | Brink as a device for measurement discharge for partially filled circular channel |
| title_full_unstemmed | Brink as a device for measurement discharge for partially filled circular channel |
| title_short | Brink as a device for measurement discharge for partially filled circular channel |
| title_sort | brink as a device for measurement discharge for partially filled circular channel |
| topic | End depth ratio Flow measurement Circular Open channel Partially filled |
| url | http://www.sciencedirect.com/science/article/pii/S2090447912000676 |
| work_keys_str_mv | AT imhrashwan brinkasadeviceformeasurementdischargeforpartiallyfilledcircularchannel AT miidress brinkasadeviceformeasurementdischargeforpartiallyfilledcircularchannel |