Abstract
In the present study, the development of a submerged gas jet subjected to liquid cross flow is experimentally and theoretically investigated to evaluate the effects of the cross flow. Experimentally, a submerged gas jet is injected into the liquid flow with different cross velocities (0.35 m/s, 0.7 m/s, 1.0 m/s, 1.5 m/s, 2.0 m/s) created by the newly designed experimental facility. The jet morphologies are captured by shadow photography and the images are processed to extract the parameters of the gas/liquid interface. An integral model including the jet entrainment is proposed to predict the jet evolution. It turns out that the integral model is able to predict the jet development accurately, and an overall good agreement was obtained between the theoretical and experimental results over a range of cross flow velocities.
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