Effects of Weber number and surface temperature on the boiling and spreading characteristics of impinging water droplets
View/ Open
Date
2002-06Author
Kandlikar, Satish
Steinke, Mark
Singh, Ashish
Metadata
Show full item recordAbstract
In the present work, the effects of Weber number and
surface temperature upon the droplet impingement behavior and
boiling characteristics have been experimentally studied. High
speed photography (up to 8000 frames per second) has been
employed to visualize the interface interactions.
An experimental apparatus is designed and fabricated to
deliver constant size droplets to a heated copper surface. The
Weber number and the surface temperature are varied to
determine their effects upon the boiling characteristics. The
surface temperature range is 25°C to 350°C and the Weber
number is varied from 10 to 58. A high-speed digital camera is
utilized in capturing this dynamic. The droplet characteristic
during droplet levitation has been classified into four types;
levitation after several advance and recoil cycles, levitation
after first recoil, disintegration after first recoil, disintegration
after impact. The maximum spread diameter is also compared
with three established correlations from literature.
Collections
The following license files are associated with this item: