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

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

no journal, , 

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.