A Study on the Hydraulic Resistance of Rigid Unsubmerged Vegetation in Floodplain

The variations of water level and flow velocity distribution can be caused by the aquatic vegetation which plays an important role in flood plain. In this study, a series of laboratory experiments are carried out to simulate the floodplain flow under three discharge conditions and four reed densities. The flow state, water level variation and flow velocity distribution are investigated in the modeling floodplain. Also, the relationship between flow resistance and reed densities is discussed. The results provide a better insight into the flow resistance of rigid unsubmerged vegetation in floodplain.Copyright © 2010 by ASME