910 加圧溶解式マイクロバブルを用いたPIV、UVP計測(2)(OS9-3 超音波を利用した流動場の計測(マイクロバブル・混相流),OS9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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The authors examined to apply micro-bubbles of 40μm mean diameter generated by the pressurized dissolution method to the measurement of liquid flow field using PIV and UVP (Ultrasonic Velocity Profile monitor) instead of fine solid particles. Micro-bubbles are very economical and ecological compared with solid tracer or reflector particles. We measured liquid flow field about a square cavity and around a circular cylinder using PIV or UVP. The flow field around a rising large bubble in a round vertical pipe is also measured using UVP. According to experimental results, we can recognize the possibility of micro-bubbles for these applications.
2007-11-17