渦によるガス巻込み現象の観察と巻込み気泡量の定量評価

Observation of gas entrainment from free surface by vortex and measurement of entrained gas flow rate

鈴木 浩之*; 小泉 安郎*; 岡嵜 翔太郎*; 伊藤 啓; 大島 宏之

Suzuki, Hiroyuki*; Koizumi, Yasuo*; Okazaki, Shotaro*; Ito, Kei; Ohshima, Hiroyuki

比較的単純な体系におけるガス巻込み現象の発生挙動について観察し、メカニズムについて考察するとともに、ガス巻込み発生時の巻込み気相流量を計測した。

The occurrence of the gas entrainment (GE) phenomenon in a simple experimental system (cylindrical tank) was investigated under several conditions, i.e. liquid depth and inlet flow rate. Under GE occurrence conditions, the flow rate of the entrainment gas was measured. In addition, based on the experimental results, the mechanism of the GE occurrence was discussed.