A new method of simulating fiber suspensions and applications to channel Flows

Handle URI:
http://hdl.handle.net/10754/575688
Title:
A new method of simulating fiber suspensions and applications to channel Flows
Authors:
Yang, Wei; Zhou, Kun ( 0000-0003-2320-3655 )
Abstract:
A successive iteration method is proposed to numerically simulate fiber suspensions. The computational field is discretized with the collocated finite volume method, and an ergodic hypothesis is adopted to greatly accelerate the solution to the Fokker - Planck equation. The method is employed in channel flows with different fiber volume fractions and aspect ratios, and its effectiveness is proved. The numerical results show that the existence of fibers significantly changes the pressure distribution, and the fiber aspect ratio has a greater effect on the velocity profile than on the volume faction. At the center of the channel, the velocity increases along the streamwise direction, while the velocity near the wall decreases slightly. The uncoupling and coupling solutions of the additional stress of the fiber suspensions are quite different. © 2012 Chinese Physical Society and IOP Publishing Ltd.
KAUST Department:
Clean Combustion Research Center
Publisher:
IOP Publishing
Journal:
Chinese Physics Letters
Issue Date:
Jun-2012
DOI:
10.1088/0256-307X/29/6/064702
Type:
Article
ISSN:
0256307X
Sponsors:
Supported by the National Natural Science Foundation of China under Grant No 11132008.
Appears in Collections:
Articles; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorYang, Weien
dc.contributor.authorZhou, Kunen
dc.date.accessioned2015-08-24T08:35:53Zen
dc.date.available2015-08-24T08:35:53Zen
dc.date.issued2012-06en
dc.identifier.issn0256307Xen
dc.identifier.doi10.1088/0256-307X/29/6/064702en
dc.identifier.urihttp://hdl.handle.net/10754/575688en
dc.description.abstractA successive iteration method is proposed to numerically simulate fiber suspensions. The computational field is discretized with the collocated finite volume method, and an ergodic hypothesis is adopted to greatly accelerate the solution to the Fokker - Planck equation. The method is employed in channel flows with different fiber volume fractions and aspect ratios, and its effectiveness is proved. The numerical results show that the existence of fibers significantly changes the pressure distribution, and the fiber aspect ratio has a greater effect on the velocity profile than on the volume faction. At the center of the channel, the velocity increases along the streamwise direction, while the velocity near the wall decreases slightly. The uncoupling and coupling solutions of the additional stress of the fiber suspensions are quite different. © 2012 Chinese Physical Society and IOP Publishing Ltd.en
dc.description.sponsorshipSupported by the National Natural Science Foundation of China under Grant No 11132008.en
dc.publisherIOP Publishingen
dc.titleA new method of simulating fiber suspensions and applications to channel Flowsen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.identifier.journalChinese Physics Lettersen
dc.contributor.institutionDepartment of Mechanics, Zhejiang University, Hangzhou 310027, Chinaen
kaust.authorZhou, Kunen
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