Author(s): Yusuke Yamazaki; Akira Matsuoka; Tsuyoshi Ikeshima And Takahiro Itoh
Linked Author(s): Yusuke Yamazaki
Keywords: Japanese pipe hydrophone cross-sectional averaged bedload two-dimensional flow analysis
Abstract: Various applications of bedload-surrogate observations, e. g., Japanese pipe hydrophones, have been proposed, including use to verify calculations of riverbed deformation and active sediment transport after catastrophic sediment production events or during high probability flood events. Notably, bedload-surrogate data are expected to be used soon to verify Sabo master plan. Cross-sectional averages of bedload transport are essential for this purpose; however, it is challenging to estimate the total bed load transport across an entire cross-section based on observations at a single point. In this study, we attempt to estimate the cross-sectional averaged bedload transport based on the transverse distribution of shear stress obtained through the two-dimensional open-channel flow simulation. We demonstrate that the results of such analysis can be used to obtain cross-sectional averages of bedload transport.
Year: 2025