Influence of Liquid Pool Temperature on the Critical Impact Weber Number for Splashing.
Influence of Liquid Pool Temperature on the Critical
Impact Weber Number for Splashing.
(96 K)
Manzello, S. L.; Yang, J. C.
Physics of Fluids, Vol. 15, No. 1, 257-260, January
2003.
Keywords:
droplets; temperature
Abstract:
An experimental study is presented to determine the
influence of liquid pool temperature on splashing
behavior. Water droplets with initial diameter of 3.1 mm
+ 0.1 mm impacted a water pool 40 mm in depth. The
impaction process was recorded using a high-speed
digital camera at 1000 frames per second. The impinging
droplet was fixed at room temperature and the liquid
surface was heated using a hotplate. To determine the
critical We number for splashing, the impact velocity
was varied. The critical impact Weber number for
splashing was found to be dependent on liquid pool
temperature, decreasing with an increase in surface
temperature.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899