(319e) Alternating Bubble Pattern in Liquid-Gas Systems Due to Jet Interaction

A study of gas-jet interaction in water was conducted both experimentally and computationally using the volume of fluid (VOF) method in a pseudo 2D system. The profile of the gas-jet penetration displayed an alternating pattern at shorter separation distances between two orifices meaning that a jet grows at one orifice while the other jet pinches off to form a bubble at the other orifice. On the other hand, at larger separation distances between two orifices, bubbles pinch off from the jets simultaneously. In addition to varying the separation distances between two orifices, the effect of changing the gas flow velocity (gas flow rate) and width of the vessel on the behavior of jets were investigated. The interacting pattern for each pair of jets, under the specified parameters, is characterized by its cross-correlation measurement.