Droplet dynamics in a bifurcating channel
2010 (English)In: International Journal of Multiphase Flow, ISSN 0301-9322, Vol. 36, no 5, 397-405 p.Article in journal (Refereed) Published
In the present paper we present a phenomenological description of droplet dynamics in a bifurcating channel that is based on three-dimensional numerical experiments using the Phase Field theory. Droplet dynamics is investigated in a junction, which has symmetric outflow conditions in its daughter branches. We identify two different flow regimes as the droplets interact with the tip of the bifurcation, splitting and non-splitting. A distinct criterion for the flow regime transition is found based on the initial droplet volume and the Capillary (Ca) number. The Rayleigh Plateau instability is identified as a driving mechanism for the droplet breakup close to the threshold between the splitting and non-splitting regime.
Place, publisher, year, edition, pages
2010. Vol. 36, no 5, 397-405 p.
Droplet dynamics, Cahn-Hilliard, Bifurcating channels, Wetting, Rayleigh-Plateau instability, Passive breakup, networks, fluid, flows, tubes, simulations, deposition, transport, system, model, time
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-19394DOI: 10.1016/j.ijmultiphaseflow.2010.01.002ISI: 000276584400005ScopusID: 2-s2.0-77549084272OAI: oai:DiVA.org:kth-19394DiVA: diva2:337441
QC 201005252010-08-052010-08-052012-03-13Bibliographically approved