Experimental study of the breakup of vertical liquid jet

The experimental study results of the breakup of a vertical liquid jet freely flowing through nozzle from vessel are presented. A qualitative picture of the breakup jet into drops at the its varying diameter and initial velocity has been obtained. The results of measuring the length of the continuous area of the liquid jet by the visualization method depending on the initial values of its diameter and flow rate as well as on the fluid characteristics have been obtained. It has been experimentally determined that the length of the continuous area of the jet monotonically increases with an increase in its initial diameter for all studied types of liquids. The length of the continuous area of the jet also increases for all the liquids studied with an increase in the initial velocity of liquid flow from the nozzle. A decrease in the surface tension coefficient due to the introduction of surfactant leads to an increase in the length of the continuous area of the jet compared to distilled water. An increase in the viscosity of the liquid due to the use of a water-glycerin solution leads to an increase in the length of the continuous area of the jet.