Experiments on density currents dynamics over conic roughness elements
Density currents are flows driven by density differences caused by suspended fine solid material, dissolved contents, temperature gradient or a combination of them. Reservoir sedimentation is often related to sediment transport by density currents. This sedimentation can block bottom outlets, reduce...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.utm.my/60905/1/MohamadHidayatJamal2014_ExperimentsonDensityCurrentsDynamicsOverConic.pdf |
| _version_ | 1796860998019186688 |
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| author | Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomeshi, M. Roushenas, Peiman |
| author_facet | Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomeshi, M. Roushenas, Peiman |
| author_sort | Nasrollahpour, Reza |
| collection | ePrints |
| description | Density currents are flows driven by density differences caused by suspended fine solid material, dissolved contents, temperature gradient or a combination of them. Reservoir sedimentation is often related to sediment transport by density currents. This sedimentation can block bottom outlets, reduce the capacity of reservoir and harms the dam power plants. The head is the leading edge of density currents. In this paper, the influences of artificially roughened beds on dynamics of the frontal region of density currents are investigated experimentally. Three rough beds using conic roughness elements and a smooth bed were tested. The observed trend is that as the surface roughness increases the head concentration and velocity decreases. |
| first_indexed | 2024-03-05T19:49:41Z |
| format | Conference or Workshop Item |
| id | utm.eprints-60905 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T19:49:41Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | utm.eprints-609052017-09-11T00:20:42Z http://eprints.utm.my/60905/ Experiments on density currents dynamics over conic roughness elements Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomeshi, M. Roushenas, Peiman TA Engineering (General). Civil engineering (General) Density currents are flows driven by density differences caused by suspended fine solid material, dissolved contents, temperature gradient or a combination of them. Reservoir sedimentation is often related to sediment transport by density currents. This sedimentation can block bottom outlets, reduce the capacity of reservoir and harms the dam power plants. The head is the leading edge of density currents. In this paper, the influences of artificially roughened beds on dynamics of the frontal region of density currents are investigated experimentally. Three rough beds using conic roughness elements and a smooth bed were tested. The observed trend is that as the surface roughness increases the head concentration and velocity decreases. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/60905/1/MohamadHidayatJamal2014_ExperimentsonDensityCurrentsDynamicsOverConic.pdf Nasrollahpour, Reza and Jamal, Mohamad Hidayat and Ghomeshi, M. and Roushenas, Peiman (2014) Experiments on density currents dynamics over conic roughness elements. In: 5th International Graduate Conference on Engineering Science and Humanity, 19-21 August, 2014, Johor Bahru, Malaysia. |
| spellingShingle | TA Engineering (General). Civil engineering (General) Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomeshi, M. Roushenas, Peiman Experiments on density currents dynamics over conic roughness elements |
| title | Experiments on density currents dynamics over conic roughness elements |
| title_full | Experiments on density currents dynamics over conic roughness elements |
| title_fullStr | Experiments on density currents dynamics over conic roughness elements |
| title_full_unstemmed | Experiments on density currents dynamics over conic roughness elements |
| title_short | Experiments on density currents dynamics over conic roughness elements |
| title_sort | experiments on density currents dynamics over conic roughness elements |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/60905/1/MohamadHidayatJamal2014_ExperimentsonDensityCurrentsDynamicsOverConic.pdf |
| work_keys_str_mv | AT nasrollahpourreza experimentsondensitycurrentsdynamicsoverconicroughnesselements AT jamalmohamadhidayat experimentsondensitycurrentsdynamicsoverconicroughnesselements AT ghomeshim experimentsondensitycurrentsdynamicsoverconicroughnesselements AT roushenaspeiman experimentsondensitycurrentsdynamicsoverconicroughnesselements |