【論 文】
急縮小部を有する微小流路内気液二相流の気泡速度に及ぼす流路高さの影響
キーワード:
Gas-liquid two-phase flow,
Sudden contraction,
Millimeter-scale channel,
Flow pattern,
Bubble velocity
2013 年 27 巻 2 号 p. 168-174
詳細
2013 年 27 巻 2 号 p. 168-174
An experimental investigation is carried out on the effects of a sudden contraction on the characteristics of an air-water two-phase flow in a millimeter-scale rectangular channel. The results reveal that the flow pattern transition types caused by sudden contraction can be basically classified into five. The scatter of the leading edge velocity of a bubble observed downstream of the sudden contraction increases as the channel height becomes smaller than a certain critical value. This phenomenon is not beneficial for practical usage of gas-liquid two-phase flows in micro channels.
