PHENOMENAL TRANSITION OF LIQUID ATOMIZATION FROM DISK
1974 年 7 巻 1 号 p. 13-19
詳細
1974 年 7 巻 1 号 p. 13-19
The change of atomization mechanism at the edge of a rotating disk was studied based on theoretical consideration and various experimental data.
The flow rate at the transition was determined by seeing directly the transition phenomena with a stroboscope. Four kinds of liquids and five kinds of disks were used in this experiment, and the rotational number was varied from 500 to 4000 rpm.
As a result, it was seen that the transition accompanied a kind of hysteresis phenomenon. The flow rate at the transition from direct drop to ligament formation was a little more than that at the reverse transition, as given by Eqs.(27) and (28), respectively. Also, for the transition from ligament to film formation and the reverse transition, a similar hysteresis was obtained. Hinze and Milborn''s equation can be used for liquid of less than a few poises in viscosity for prediction of the flow rate at the transition from ligament to film formation, and the equation by Tanasawa et al. is applicable to more viscous liquids.
