THE EFFECT OF VEGETATION RIGIDITY ON FLOW RESISTANCE
Many references can be found in research on the hydraulic roughness of both stiff and flexible vegetation, hut there are no absolute stiff or flexible vegetations, which depend on both stiffness of vegetation and flowing water. It is necessary to study effects of vegetation rigidity on the hydraulic roughness. The experimental results show that a rigidity coefficient of vegetation can be used to describe the vegetation rigidity relating to the flowing water. The roughness n can change dramatically as the vegetation rigidity coefficient ζ changes from 0.01 to 0.2. The influence of vegetation rigidity coefficient ζ on the roughness n becomes non-apparent only when ζ＞0.2 or ζ＜0.01.
vegetation rigidity flezibility rigidity coefficient hydraulic roughness
Zhongmin Yan Xiaoyan Wang
Hohai University, Nanjing, China Msc., Guangdong Electric Power Design Institute, Guangzhou, China
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
643-645
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）