KSTLE International Journal
- 제1권1호
- /
- Pages.52-58
- /
- 2000
- /
- 1229-9189(pISSN)
Effect of a Silicone Defoamant on the Motion of Single Air Bubbles Rising in Lubricant
- Shim, Joosup (Korea Research Institute of Chemical Technology) ;
- Cho, Wonoh (Korea Research Institute of Chemical Technology) ;
-
Chung, Keunwoo
(Korea Research Institute of Chemical Technology)
;
- Kim, Woung Woon (Korea Research Institute of Chemical Technology)
- 발행 : 2000.06.01
초록
The velocity and motion of single air bubbles rising through lubricant have been experimentally investigated to test the effect of silicon defoamant The investigation reveals that the velocity is markedly retarded by the addition of small amount of silicone defoamant. This retardation of rising velocity of air bubbles is proposed by increasing of Drag force or reducing of Buoyancy force around the surfaces of the bubbles.