Based on indoor fixed-bed experiment of overland flow,the relationships between hydraulic properties(Reynolds number,flow velocity,water depth and resistance coefficient) and discharge,slope gradient is examined by simulating in a resistant flume,on which a kind of sand(1~2 mm) was fixed.The results show that: ①the Re number of overland flow increase with the increasing of discharge and slope gradient.However,the effect of discharge is more greater than that of slope gradient.②the average velocity and water...
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