1.
Phys Rev Lett
; 86(7): 1211-4, 2001 Feb 12.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11178046
RESUMO
We describe the direct observation of deforming water drops in oil undergoing shear flow in a horizontal annular Couette cell. The drops assume a wide variety of highly reproducible structures depending on drop size, rotation speed, and flow history. These structures include toroidal rings of water around the rotating shaft and water sheaths, which, depending on experimental conditions, can either expand to press against the inner walls of the outer stationary cylinder or contract to hug the outside of the rotating shaft.