転波列流れの流速挙動について Behavior of the velocity field on roll-wave flow

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The characteristic of roll-wave flow, which is a flow with high Froude number which appears on the steep slope, is hardly known at present. In laboratory experiment, it was difficult to measure the flow profile which is a thin sheet flow having the characteristic of a wave and a flow.<BR>In this study we measured the velocity field of the roll-wave flow using PIV technique. We also investigated the behaviors of the velocity field in each region separated into five parts of one wave length. As a result, the relationship between velocity field and the water depth in each part was clarified. It also appeared that the velocity profile is grater than a log-law profile at every region.

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  • 可視化情報学会誌. Suppl.  

    可視化情報学会誌. Suppl. 26(2), 53-54, 2006-09-15 

    The Visualization Society of Japan

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