TRANSITION FROM BUBBLING TO JETTING AT SINGLE ORIFICES

Abstract

The transition from bubbling to jetting at single holes was studied experimentally.
Transient jetting in addition to the six different regimes reported by Muller et al. was noticed. Empirical equations predicting the steady to pulsating and the pulsating to transient jetting transitions are obtained in terms of the dimensionless liquid depth, the modified Froude number and the Bond number, which have been proposed by Payne et al., and the state diagram showing the transition from bubbling to jetting is given by considering both the previous and the authors9 results at single orifices.