The formation of small-scale fluvial bed waves with suspended sediment transport

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  • 活発な浮遊砂を考慮した小規模河床形態の発生理論(移動床(1),一般講演)

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Abstract

A flat bed becomes unstable, and is covered with small-scale bed waves during floods. One of the purposes of this study is to extend existing linear stability analysis taking into account only bedload to the case with active suspended sediment transport. It is found from the analysis that, with increasing suspended sediment, the critical Froude number for the bed instability is reduced, and the formation of small-scale bed waves tends to be inhibited.

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