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Flexible Roughness in Open Channels
Abstract
The logarithmic flow formula for open channels is valid for flow over a roughness cover made up of flexible plastic strips. The deflection of such roughness is an important parameter as the deflection directly influences the relative roughness. Dimensionless parameters which relate the amount of bending to the stiffness of the roughness and the boundary shear are defined. Three regimes of boundary behavior are observed for flexible plastic roughness, leading to two resistance functions. The flexible plastic roughness is produced by affixing thin plastic strips of various thickness to the bed of a flume. The flow of water over flexible plastic strips simulates flow over a vegetative channel lining.
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Citations
Cited by
Flow structure in depth‐limited, vegetated flow
Nepf, H. M., & Vivoni, E. R. (2000) · Journal of Geophysical Research: Oceans · doi:10.1029/2000jc900145 · Cited by 849
Corenblit, D., Tabacchi, E., Steiger, J., & Gurnell, A. M. (2007) · Earth-Science Reviews · doi:10.1016/j.earscirev.2007.05.004 · Cited by 721
Mendez, F. J., & Losada, I. J. (2004) · Coastal Engineering · doi:10.1016/j.coastaleng.2003.11.003 · Cited by 687
On inducing equations for vegetation resistance
Baptist, M. J., Babovic, V., Rodríguez Uthurburu, J., Keijzer, M., Uittenbogaard, R. E., Mynett, A., & Verwey, A. (2007) · Journal of Hydraulic Research · doi:10.1080/00221686.2007.9521778 · Cited by 484
Flow resistance of flexible and stiff vegetation: a flume study with natural plants
Järvelä, J. (2002) · Journal of Hydrology · doi:10.1016/s0022-1694(02)00193-2 · Cited by 406
Metadata
- Authors
- Kouwen, N., & Unny, T. E.
- Venue
- Journal of the Hydraulics Division
- Published
- 1973-05
- Volume
- 99
- Issue
- 5
- Pages
- 713-728
- ISSN
- 0044-796X (ISSN-L)
- 2690-2524
- OpenAlex
- W1493333525
- Cited by
- 295
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kouwen, N., & Unny, T. E. (1973). Flexible Roughness in Open Channels. Journal of the Hydraulics Division. https://doi.org/10.1061/jyceaj.0003643
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
