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http://dx.doi.org/10.12652/Ksce.2012.32.6B.345

Roughness Coefficients Evaluation of the Korean Riparian Vegetation  

Rhee, Dong Sop (한국건설기술연구원 하천해안연구실)
Lee, Du Han (한국건설기술연구원 하천해안연구실)
Kim, Myounghwan (한국건설기술연구원 하천해안연구실)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.6B, 2012 , pp. 345-354 More about this Journal
Abstract
The main objective of this study is evaluating experimentally roughness coefficients of the Korean riparian vegetations based on the n-VR analysis to suggest the practical guideline for Manning's roughness coefficients for the channel design. Hydraulic experiments were conducted for Phragmites japonica Steud., Miscanthus sacchariflorus (Maxim.) Benth., and Phragmites communis Trin. under both submerged and un-submerged conditions, and the n-VR relationships are developed for each grass. Three vegetations tested in this study can be considered as same group showing similar roughness characteristics, though these grasses are strongly affected by vegetation stiffness. Vegetation roughness are also affected by the growth state of plants according to experimental results of Phragmites communis Trin.
Keywords
roughness coefficients; vegetation roughness; n-VT relationship; riparian vegetations; flow resistance;
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Times Cited By KSCI : 9  (Citation Analysis)
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