Phys. Rev. Lett. 102, 144501 (2009) [4 pages]Force Balance at the Transition from Selective Withdrawal to Viscous Entrainment
See accompanying Physics Synopsis We simulate the evolution of the steady-state interface in the selective withdrawal regime. Selective withdrawal ends when the upward pull exerted by the viscous flow in the withdrawing liquid layer overcomes the downward force due to surface tension. The lower-layer dynamics are unimportant. The dominant contribution to the surface-tension force comes from the large area where the interface is weakly deflected, instead of the small area where the surface is most distorted. A scaling estimate based on this idea yields results that agree quantitatively with both simulations and previous experiments. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.144501
DOI:
10.1103/PhysRevLett.102.144501
PACS:
47.55.nm, 47.15.G−
See AlsoComment: J. Eggers and S. Courrech du Pont, Comment on “Force Balance at the Transition from Selective Withdrawal to Viscous Entrainment”, Phys. Rev. Lett. 105, 089401 (2010). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.