Velocity distributions in vegetated particle-laden flows
The existence of vegetation in open channels has several influences over fluvial processes, such as increasing resistance to flow, or causing higher sediment deposition rates. This causes the flow structure to be different from non-vegetated flow.This project was carried out in the Hydraulics Modeli...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/10356/45043 |
| _version_ | 1811684497088839680 |
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| author | Tay, Ming Li. |
| author2 | Cheng Niansheng |
| author_facet | Cheng Niansheng Tay, Ming Li. |
| author_sort | Tay, Ming Li. |
| collection | NTU |
| description | The existence of vegetation in open channels has several influences over fluvial processes, such as increasing resistance to flow, or causing higher sediment deposition rates. This causes the flow structure to be different from non-vegetated flow.This project was carried out in the Hydraulics Modeling Laboratory within Nanyang
Technological University, and an open channel flow was modelled using a 12m long, 0.3m wide
and 0.45m deep flume. Vegetation was modelled using rigid cylindrical rods. A total of 4
configurations were used, named as Cases A30, A60, B60 and C60, based on the distance
between them as well as the diameter of rods that were used.
The aim was to determine the flow velocity profile concentration that each individual case
would have, and comparisons were made between them. The results were analysed and it was
shown that the existence of vegetation created some resistance to flow, lowering the flow
velocity. The presence of the vegetation also created sand dune formations due to the increased
resistance to flow, and such occurrence was dependent on the vegetation density and flow
velocity. |
| first_indexed | 2024-10-01T04:29:34Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/45043 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:29:34Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/450432023-03-03T17:11:55Z Velocity distributions in vegetated particle-laden flows Tay, Ming Li. Cheng Niansheng School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering The existence of vegetation in open channels has several influences over fluvial processes, such as increasing resistance to flow, or causing higher sediment deposition rates. This causes the flow structure to be different from non-vegetated flow.This project was carried out in the Hydraulics Modeling Laboratory within Nanyang Technological University, and an open channel flow was modelled using a 12m long, 0.3m wide and 0.45m deep flume. Vegetation was modelled using rigid cylindrical rods. A total of 4 configurations were used, named as Cases A30, A60, B60 and C60, based on the distance between them as well as the diameter of rods that were used. The aim was to determine the flow velocity profile concentration that each individual case would have, and comparisons were made between them. The results were analysed and it was shown that the existence of vegetation created some resistance to flow, lowering the flow velocity. The presence of the vegetation also created sand dune formations due to the increased resistance to flow, and such occurrence was dependent on the vegetation density and flow velocity. Bachelor of Engineering (Environmental Engineering) 2011-06-08T07:15:30Z 2011-06-08T07:15:30Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45043 en Nanyang Technological University 72 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Environmental engineering Tay, Ming Li. Velocity distributions in vegetated particle-laden flows |
| title | Velocity distributions in vegetated particle-laden flows |
| title_full | Velocity distributions in vegetated particle-laden flows |
| title_fullStr | Velocity distributions in vegetated particle-laden flows |
| title_full_unstemmed | Velocity distributions in vegetated particle-laden flows |
| title_short | Velocity distributions in vegetated particle-laden flows |
| title_sort | velocity distributions in vegetated particle laden flows |
| topic | DRNTU::Engineering::Environmental engineering |
| url | http://hdl.handle.net/10356/45043 |
| work_keys_str_mv | AT taymingli velocitydistributionsinvegetatedparticleladenflows |