Abstract
Abstract: The effect on Sediment-laden flow turbulence characteristics of Wetland plants simulated by flexible plastic tree growing and distribution of suspended sediment concentration were studied through the flume experiment under a certain hydraulic condition. The experimental results showed that the vertical velocity distribution of sediment flow with plant was no longer consistent with logarithm distribution with no plants in sediment flow, but for the "S"-type distribution. The turbulent intensity and Reynolds stress in longitudinal,transversal and vertical orientation were anisotropic, and the maximum and the location of the maximum increased with increasing plant height. Plant growth effects of sediment removal was significant. The vertical suspended sediment concentration increased with plant height decrease, the suspended sediment concentration gradually decreased along the flow direction.
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