Scaling of velocity profiles for depth-limited open channel flows over simulated rigid vegetation
Using the plane mixing layer analogy, a length scale is proposed to normalize velocity profiles for vegetated open channel flows. The new scaling is an improvement over those based on the logarithmic, velocity-defect, and power laws in collapsing the velocity profiles, which include measurements c...
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| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96825 http://hdl.handle.net/10220/11632 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Using the plane mixing layer analogy, a length scale is proposed to normalize velocity profiles for vegetated open channel flows.
The new scaling is an improvement over those based on the logarithmic, velocity-defect, and power laws in collapsing the velocity profiles,
which include measurements conducted in this study and also those reported in the literature for a variety of flow and vegetation configurations.
An eddy viscosity model is also developed to justify the scaling argument. This study is limited to rigid vegetation submerged in
depth-limited flows, in which the flow depth is no greater than twice the vegetation height. |
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