Abstract

Stability theory is applied to the liquid jet ejected from a rotating nozzle, and the breakup length and the drop size are analyzed. By the ejection of water, methanol and aqueous glycerol solution from a nozzle rotating at 250-1450 rpm, the breakup length and drop size were measured. As the liquid velocity increases, the single drop formation, laminar, and turbulent jet are observed. The laminar breakup length increases with the increase of the liquid velocity and the rotating velocity. The diameter of drops formed from the laminar jet increases with the increase of the liquid velocity and decreases with the increase of the rotating velocity. Predictions show a good agreement with experimental data of breakup length and drop size.

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