1803 超音波速度計測によるアスペクト比の小さいTaylor渦流れの解析(OS18-1 超音波を利用した流動場の計測,オーガナイズドセッション)

概要

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In this study, our purpose is to obtain instantaneous and mean velocity profiles in a Taylor-Couette vortex flow(TVF) by using a ultrasonic measurement system. The experiment was carried out with a small aspect ratio where the Ekman boundary layer was not neglected. The device has a radial ratio of 0.667 or 0.375, aspect ratio of 3 and the gap length between the inner and outer cylinders of 25mm. The mean velocity profiles and their absolute values were in good agreement with those obtained with the ultrasonic velocity profiler (UVP). This measurement system was applied to the solid-liquid phase flow experimentally, and well measured even in the opaque dilute solution.
2009-11-06