回転二円板間のコア境界形状に基づく流れモードの実験(渦・回転+大気(1),一般講演)

概要

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We investigate the flow between co-rotating disks with a narrow gap, enclosed by a stationary shroud at their circumferences, using the flow visualisation together with PIV analysis. Experiments are conducted concerning four system parameters, that is, disk-tip Reynolds number, gap aspect ratio, dimensionless peripheral radius and dimensionless hub radius. As a result, the rotational speed of a central core configuration obviously depends upon flow modes, which approximately coincides with the Kirchhoff's potential theory, while the radius of the configuration does not. Furthermore, we propose a theoretical modeling for flow modes, and reveal the influence of the hub radius upon the flow modes.
日本流体力学会の論文
2009-09-02