水路分岐の線形安定解析(移動床の流体力学,一般講演) [in Japanese] Linear Stability Analysis of Channel Bifurcation [in Japanese]
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This study proposes a simple mathematical model of channel bifurcation, in which a channel head is modeled by an opening on a flat plane composed of erodible bed material. A linear stability analysis is performed with the use of the depth-averaged momentum equations of flow and the Exner equation of beds subject to erosion. The analysis shows that channel bifurcation tends to take place as the discharge attracted by the channel head decreases.
日本流体力学会年会講演論文集 2007, 143, 2007