- Title
- 3D flow structure in a sand bed stream with riparian vegetation
- Creator
- Gorrick, S.; Rodriguez, J. F.
- Relation
- International Conference on Fluvial Hydraulics (River Flow 2012). Proceedings of the International Conference on Fluvial Hydraulics: River Flow 2012: Volume 1 (San Jose, Costa Rica 5-7 September, 2012) p. 53-58
- Relation
- https://www.crcpress.com/River-Flow-2012/Murillo-Muoz/9780415621298
- Publisher
- CRC Press
- Resource Type
- conference paper
- Date
- 2012
- Description
- We present a set of laboratory experiments based on field site conditions along a reach of a sand bed stream in south-eastern Australia that is currently being restored by reintroduction of riparian vegetation. Two experiments were conducted: the first experiment contained no bank vegetation, whereas the second experiment placed a series of three inline vegetation patches along the outer bank. A dense grid of ADV velocity measurements and water surface elevations were collected and the analysis focused on velocity and bed shear stresses distribution, secondary circulation and lateral convergence and divergence patterns. In the experiments with bank vegetation a reduction in near bank velocities was observed but also the overall 3D flow structure was significantly affected. As a result of flow straightening, the intensity of secondary circulation was weaker than in the experiment with no vegetation and was prevented from penetrating the near bank zone by the vegetation.
- Subject
- 3D flow structure; laboratory experiements; sand bed stream; riparian vegetation
- Identifier
- http://hdl.handle.net/1959.13/1308846
- Identifier
- uon:21725
- Identifier
- ISBN:9780415621298
- Language
- eng
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