Interfacial deflection and jetting of a paramagnetic particle-laden fluid: theory and experiment

Handle URI:
http://hdl.handle.net/10754/598653
Title:
Interfacial deflection and jetting of a paramagnetic particle-laden fluid: theory and experiment
Authors:
Tsai, Scott S. H.; Griffiths, Ian M.; Li, Zhenzhen; Kim, Pilnam; Stone, Howard A.
Abstract:
We describe the results of experiments and mathematical analysis of the deformation of a free surface by an aggregate of magnetic particles. The system we study is differentiated from ferrofluid systems because it contains regions rich with magnetic material as well as regions of negligible magnetic content. In our experiments, the magnetic force from a spherical permanent magnet collects magnetic particles to a liquid-air interface, and deforms the free surface to form a hump. The hump is composed of magnetic and non-magnetic regions due to the particle collection. When the magnet distance falls below a threshold value, we observe the transition of the hump to a jet. The mathematical model we develop, which consists of a numerical solution and an asymptotic approximation, captures the shape of the liquid-air interface during the deformation stage and a scaling prediction for the critical magnet distance for the hump to become a jet. © 2013 The Royal Society of Chemistry.
Citation:
Tsai SSH, Griffiths IM, Li Z, Kim P, Stone HA (2013) Interfacial deflection and jetting of a paramagnetic particle-laden fluid: theory and experiment. Soft Matter 9: 8600. Available: http://dx.doi.org/10.1039/c3sm51403j.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Soft Matter
KAUST Grant Number:
KUK-C1-013-04
Issue Date:
2013
DOI:
10.1039/c3sm51403j
Type:
Article
ISSN:
1744-683X; 1744-6848
Sponsors:
This publication is based on work partially supported by Award no. KUK-C1-013-04, made by King Abdullah University of Science and Technology (KAUST). SSHT acknowledges the National Science Foundation (NSF-CBET-0961081) for support. The authors acknowledge Janine and Joel Nunes for the construction of the motorized positioner used in these experiments.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorTsai, Scott S. H.en
dc.contributor.authorGriffiths, Ian M.en
dc.contributor.authorLi, Zhenzhenen
dc.contributor.authorKim, Pilnamen
dc.contributor.authorStone, Howard A.en
dc.date.accessioned2016-02-25T13:33:51Zen
dc.date.available2016-02-25T13:33:51Zen
dc.date.issued2013en
dc.identifier.citationTsai SSH, Griffiths IM, Li Z, Kim P, Stone HA (2013) Interfacial deflection and jetting of a paramagnetic particle-laden fluid: theory and experiment. Soft Matter 9: 8600. Available: http://dx.doi.org/10.1039/c3sm51403j.en
dc.identifier.issn1744-683Xen
dc.identifier.issn1744-6848en
dc.identifier.doi10.1039/c3sm51403jen
dc.identifier.urihttp://hdl.handle.net/10754/598653en
dc.description.abstractWe describe the results of experiments and mathematical analysis of the deformation of a free surface by an aggregate of magnetic particles. The system we study is differentiated from ferrofluid systems because it contains regions rich with magnetic material as well as regions of negligible magnetic content. In our experiments, the magnetic force from a spherical permanent magnet collects magnetic particles to a liquid-air interface, and deforms the free surface to form a hump. The hump is composed of magnetic and non-magnetic regions due to the particle collection. When the magnet distance falls below a threshold value, we observe the transition of the hump to a jet. The mathematical model we develop, which consists of a numerical solution and an asymptotic approximation, captures the shape of the liquid-air interface during the deformation stage and a scaling prediction for the critical magnet distance for the hump to become a jet. © 2013 The Royal Society of Chemistry.en
dc.description.sponsorshipThis publication is based on work partially supported by Award no. KUK-C1-013-04, made by King Abdullah University of Science and Technology (KAUST). SSHT acknowledges the National Science Foundation (NSF-CBET-0961081) for support. The authors acknowledge Janine and Joel Nunes for the construction of the motorized positioner used in these experiments.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleInterfacial deflection and jetting of a paramagnetic particle-laden fluid: theory and experimenten
dc.typeArticleen
dc.identifier.journalSoft Matteren
dc.contributor.institutionPrinceton University, Princeton, United Statesen
dc.contributor.institutionRyerson University, Toronto, Canadaen
dc.contributor.institutionUniversity of Oxford, Oxford, United Kingdomen
kaust.grant.numberKUK-C1-013-04en
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