抄録
A cylindrical bath was agitated by a bottom blowing gas-liquid two-phase jet. A swirl motion of the bath appeared under certain blowing conditions. The bath was highly agitated in the presence of the swirl motion. Therefore the swirl motion is beneficial for the promotion of bath mixing. The starting time, the period and the amplitude of the swirl motion were measured. These quantities fell between their respective values for baths agitated by a bubbling jet and a liquid jet. The gas flow rate ratio was defined as the ratio of gas flow rate to the total flow rate of gas and liquid. This ratio was found to be useful for predicting the three quantities.
