Density currents dynamics over rough beds
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...
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| Format: | Conference or Workshop Item |
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2015
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| author | Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomesi, Mehdi Ismail, Zulhilmi Roushenas, Peiman |
| author_facet | Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomesi, Mehdi Ismail, Zulhilmi 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 | 2024-03-05T19:58:38Z |
| format | Conference or Workshop Item |
| id | utm.eprints-67158 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:58:38Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | utm.eprints-671582017-07-06T01:09:12Z http://eprints.utm.my/67158/ Density currents dynamics over rough beds Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomesi, Mehdi Ismail, Zulhilmi 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. 2015 Conference or Workshop Item PeerReviewed Nasrollahpour, Reza and Jamal, Mohamad Hidayat and Ghomesi, Mehdi and Ismail, Zulhilmi and Roushenas, Peiman (2015) Density currents dynamics over rough beds. In: Applied Mechanics and Materials, 25 Feb, 2015, Kuala Lumpur, Malaysia. https://www.scientific.net/AMM.735.159 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Nasrollahpour, Reza Jamal, Mohamad Hidayat Ghomesi, Mehdi Ismail, Zulhilmi Roushenas, Peiman Density currents dynamics over rough beds |
| title | Density currents dynamics over rough beds |
| title_full | Density currents dynamics over rough beds |
| title_fullStr | Density currents dynamics over rough beds |
| title_full_unstemmed | Density currents dynamics over rough beds |
| title_short | Density currents dynamics over rough beds |
| title_sort | density currents dynamics over rough beds |
| topic | TA Engineering (General). Civil engineering (General) |
| work_keys_str_mv | AT nasrollahpourreza densitycurrentsdynamicsoverroughbeds AT jamalmohamadhidayat densitycurrentsdynamicsoverroughbeds AT ghomesimehdi densitycurrentsdynamicsoverroughbeds AT ismailzulhilmi densitycurrentsdynamicsoverroughbeds AT roushenaspeiman densitycurrentsdynamicsoverroughbeds |