Sediment Transport within the Reservoir of Mandali Dam
Mandali Dam is one of the small dams in Iraq; it is located on Haran Wadi, Gangir, just 3km north-east Mandali City. Mandali dam consists of four main parts, the dam body, the intake structure, the spillway, and the bottom outlet. The dam body is zoned earth filled with a central core. The main pur...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2020-01-01
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| Series: | Journal of Engineering |
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| Online Access: | http://joe.uobaghdad.edu.iq/index.php/main/article/view/760 |
| _version_ | 1797764466801115136 |
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| author | Mustafa Suhail Abed Riyadh Z. Azzubaidi |
| author_facet | Mustafa Suhail Abed Riyadh Z. Azzubaidi |
| author_sort | Mustafa Suhail Abed |
| collection | DOAJ |
| description | Mandali Dam is one of the small dams in Iraq; it is located on Haran Wadi, Gangir, just 3km north-east Mandali City. Mandali dam consists of four main parts, the dam body, the intake structure, the spillway, and the bottom outlet. The dam body is zoned earth filled with a central core. The main purposes of the dam are to maintain flow of Wadi Haran, supplying irrigation and drinking water to Mandali City, and recharging the groundwater. Over a period of seven years of operation, the dam lost its ability to store water due to accumulated sediments within its reservoir. The accumulated sediment is about 2.25million m3. The average annual rate of reduction during this period is about 0.321million m3. This is form an annual reduction in the original capacity of the dam by 14.26%. This paper attempts to study the hydraulic characteristics and the characteristics of sediment process including the velocity patterns, the distribution concentration, and bed change of sediment within the reservoir of Mandali Dam. The main conclusions of the study that, the velocity is very high in the upstream of the reservoir, due to the relatively narrow section of the wadi and high elevations of the bottom reservoir at this part and the velocities tend to decrease gradually toward the middle part of the reservoir. High concentration in the reservoir is located at the upstream of the reservoir, due to high flow velocities at the upstream and decrease gradually toward the reservoir outlet from spillway. The thickness of deposited sediment is very high in the middle part of the reservoir due to immediate drop in the velocity of water at this part lead to high deposition of sediment. |
| first_indexed | 2024-03-12T19:57:08Z |
| format | Article |
| id | doaj.art-97a2799a0f2c40d0a8106f9bdcb1a9e4 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-12T19:57:08Z |
| publishDate | 2020-01-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-97a2799a0f2c40d0a8106f9bdcb1a9e42023-08-02T02:46:04ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392020-01-0126210.31026/j.eng.2020.02.03Sediment Transport within the Reservoir of Mandali DamMustafa Suhail Abed0Riyadh Z. Azzubaidi1College of Engineering - University of BaghdadCollege of Engineering - University of BaghdadMandali Dam is one of the small dams in Iraq; it is located on Haran Wadi, Gangir, just 3km north-east Mandali City. Mandali dam consists of four main parts, the dam body, the intake structure, the spillway, and the bottom outlet. The dam body is zoned earth filled with a central core. The main purposes of the dam are to maintain flow of Wadi Haran, supplying irrigation and drinking water to Mandali City, and recharging the groundwater. Over a period of seven years of operation, the dam lost its ability to store water due to accumulated sediments within its reservoir. The accumulated sediment is about 2.25million m3. The average annual rate of reduction during this period is about 0.321million m3. This is form an annual reduction in the original capacity of the dam by 14.26%. This paper attempts to study the hydraulic characteristics and the characteristics of sediment process including the velocity patterns, the distribution concentration, and bed change of sediment within the reservoir of Mandali Dam. The main conclusions of the study that, the velocity is very high in the upstream of the reservoir, due to the relatively narrow section of the wadi and high elevations of the bottom reservoir at this part and the velocities tend to decrease gradually toward the middle part of the reservoir. High concentration in the reservoir is located at the upstream of the reservoir, due to high flow velocities at the upstream and decrease gradually toward the reservoir outlet from spillway. The thickness of deposited sediment is very high in the middle part of the reservoir due to immediate drop in the velocity of water at this part lead to high deposition of sediment.http://joe.uobaghdad.edu.iq/index.php/main/article/view/760Wadi Haran, Mandali Dam, Sediment Transport |
| spellingShingle | Mustafa Suhail Abed Riyadh Z. Azzubaidi Sediment Transport within the Reservoir of Mandali Dam Journal of Engineering Wadi Haran, Mandali Dam, Sediment Transport |
| title | Sediment Transport within the Reservoir of Mandali Dam |
| title_full | Sediment Transport within the Reservoir of Mandali Dam |
| title_fullStr | Sediment Transport within the Reservoir of Mandali Dam |
| title_full_unstemmed | Sediment Transport within the Reservoir of Mandali Dam |
| title_short | Sediment Transport within the Reservoir of Mandali Dam |
| title_sort | sediment transport within the reservoir of mandali dam |
| topic | Wadi Haran, Mandali Dam, Sediment Transport |
| url | http://joe.uobaghdad.edu.iq/index.php/main/article/view/760 |
| work_keys_str_mv | AT mustafasuhailabed sedimenttransportwithinthereservoirofmandalidam AT riyadhzazzubaidi sedimenttransportwithinthereservoirofmandalidam |