Visiting Graduate Student from Tsinghua University
The evolution of vegetated landscape occurs through the interplay of flow, vegetation, and sediment transport. There is a lack of predictive models that accurately account for the impact of vegetation morphology on sediment transport. Most previous studies have only considered circular cylinders as a model for vegetation. My study focuses on the sediment transport in channels with realistic models of emergent cattail. First, flume experiments will be used to describe and predict the turbulence level and form drag within a canopy of cattails. Second, the incipient sediment motion will be investigated and compared with the bare channel. Finally, I will attempt to construct a theoretical model that predicts sediment transport rate in channels with different distributions of realistic cattail models.