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Article: Droplet generation in co-flow microfluidic channels with vibration

TitleDroplet generation in co-flow microfluidic channels with vibration
Authors
KeywordsDroplet on demand
External vibration
Synchronization
Microfluidics
Issue Date2016
PublisherSpringer Verlag. The Journal's web site is located at http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-10027-70-28985103-0,00.html
Citation
Microfluidics and Nanofluidics, 2016, v. 20 n. 3, p. article no. 47 How to Cite?
AbstractWe quantitatively characterize the perturbed droplet generation in co-flow microfluidics with mechanical vibration by estimating the fluctuations in the flow rate of inner fluid. We show the variation of generation frequency and uniformity of droplets as the frequency and amplitude of vibration. Synchronized droplet generation occurs in certain range of the vibration frequency that is predicted by our model. Besides, we scale the droplet size by incorporating the effects of vibration, inner and outer flows. The vibration is found to be capable of promoting the dripping, suppressing the jetting and even shifting the jetting into the dripping when the jet length is sufficiently short. The delayed dripping–jetting transition is characterized in a phase diagram by taking vibration into consideration. Our results unveil the mechanism of mechanically perturbed droplet generation and provide valuable guidelines for practical applications of vibration-enhanced droplet generation.
Persistent Identifierhttp://hdl.handle.net/10722/273389
ISSN
2019 Impact Factor: 2.489
2015 SCImago Journal Rankings: 0.852

 

DC FieldValueLanguage
dc.contributor.authorZhu, P-
dc.contributor.authorTang, X-
dc.contributor.authorWang, L-
dc.date.accessioned2019-08-06T09:28:01Z-
dc.date.available2019-08-06T09:28:01Z-
dc.date.issued2016-
dc.identifier.citationMicrofluidics and Nanofluidics, 2016, v. 20 n. 3, p. article no. 47-
dc.identifier.issn1613-4982-
dc.identifier.urihttp://hdl.handle.net/10722/273389-
dc.description.abstractWe quantitatively characterize the perturbed droplet generation in co-flow microfluidics with mechanical vibration by estimating the fluctuations in the flow rate of inner fluid. We show the variation of generation frequency and uniformity of droplets as the frequency and amplitude of vibration. Synchronized droplet generation occurs in certain range of the vibration frequency that is predicted by our model. Besides, we scale the droplet size by incorporating the effects of vibration, inner and outer flows. The vibration is found to be capable of promoting the dripping, suppressing the jetting and even shifting the jetting into the dripping when the jet length is sufficiently short. The delayed dripping–jetting transition is characterized in a phase diagram by taking vibration into consideration. Our results unveil the mechanism of mechanically perturbed droplet generation and provide valuable guidelines for practical applications of vibration-enhanced droplet generation.-
dc.languageeng-
dc.publisherSpringer Verlag. The Journal's web site is located at http://www.springeronline.com/sgw/cda/frontpage/0,11855,5-10027-70-28985103-0,00.html-
dc.relation.ispartofMicrofluidics and Nanofluidics-
dc.rightsThis is a post-peer-review, pre-copyedit version of an article published in [insert journal title]. The final authenticated version is available online at: http://dx.doi.org/[insert DOI]-
dc.subjectDroplet on demand-
dc.subjectExternal vibration-
dc.subjectSynchronization-
dc.subjectMicrofluidics-
dc.titleDroplet generation in co-flow microfluidic channels with vibration-
dc.typeArticle-
dc.identifier.emailWang, L: lqwang@hku.hk-
dc.identifier.authorityWang, L=rp00184-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s10404-016-1717-2-
dc.identifier.scopuseid_2-s2.0-84975745433-
dc.identifier.hkuros300440-
dc.identifier.volume20-
dc.identifier.issue3-
dc.identifier.spagearticle no. 47-
dc.identifier.epagearticle no. 47-
dc.publisher.placeGermany-

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