MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

The influence of surface tension gradients on drop coalescence

Author(s)
Bush, John W. M.; Messio, Laura; Blanchette, Francois
Thumbnail
DownloadBush_The influence.pdf (741.9Kb)
PUBLISHER_POLICY

Publisher Policy

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Metadata
Show full item record
Abstract
We present the results of a combined experimental and numerical investigation of the coalescence of a drop with a liquid reservoir of a miscible but distinct fluid. Particular attention is given to elucidating the influence on the coalescence process of a surface tension difference between drop and reservoir. Drops are gently deposited on the surface of the reservoir, and so coalesce with negligible initial vertical velocity. Depending on the drop size and reservoir composition, partial or total coalescence may occur. Three distinct regimes, depending on the reservoir to drop surface tension ratio, Rσ, are identified and delineated through both experiments and numerics. If Rσ<0.42, droplets are ejected from the top of the drop, while satellite droplets are left in its wake. For 0.42 ≤ Rσ<0.93, only total coalescence is observed. When Rσ ≥ 0.93, partial coalescence is increasingly favored as the reservoir’s surface tension increases.
Date issued
2009-07
URI
http://hdl.handle.net/1721.1/58728
Department
Massachusetts Institute of Technology. Department of Mathematics
Journal
Physics of Fluids
Publisher
American Institute of Physics
Citation
Blanchette, Francois, Laura Messio, and John W. M. Bush. “The influence of surface tension gradients on drop coalescence.” Physics of Fluids 21.7 (2009): 072107-10. © 2009 American Institute of Physics
Version: Final published version
ISSN
1070-6631
1089-7666
Keywords
surface tension, solubility, drops

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.