密度対流により生じる清澄層内液相速度の直接測定

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  • Direct Velocimetry of Liquid Phase in Clear-fluid Layer formed by Density Current

抄録

<p>To investigate the spatiotemporal velocity fluctuation of liquid phase in the clear-fluid layer of stratified suspension in the vicinity of an inclined wall, we attempt to apply Photobleaching Molecular Tagging Velocimetry (PB-MTV), which is a non-contact and non-invasive measurement technique. The grid pattern tag formed by the downward flow in the wall vicinity provides the spatiotemporal distribution of liquid phase velocity directly. Velocity fluctuation tends to increase for smaller H which expresses the border resolution of concentration interface. We conclude that the instability in clear-fluid layer occurs for the fluid-like condition that the concentration interface forms clearly.</p>

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