Completed double layer boundary element method for periodic fibre suspension in viscoelastic fluid

A numerical method to simulate the periodic fibre suspension in viscoelastic fluid is developed with the completed double layer boundary element method (CDLBEM). The periodic summations that arise in the formulation were well handled by Ewald summation technique to speed up the convergence rate in t...

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Bibliographic Details
Published inChemical engineering science Vol. 63; no. 15; pp. 3898 - 3908
Main Authors Nguyen-Hoang, Huy, Phan-Thien, Nhan, Khoo, Boo Cheong, Fan, Xi-Jun, Dou, Hua-Shu
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.08.2008
Elsevier
Subjects
Applied sciences
CDLBEM
Chemical engineering
Exact sciences and technology
Fibre suspension
Periodic
Viscoelastic matrix
Viscosity
Viscosity
CDLBEM
Viscoelastic matrix
Fibre suspension
Periodic
Viscoelastic fluid
Volume fraction
Shear flow
Numerical method
Velocity distribution
Aspect ratio
Fibre suspension,Viscoelastic matrix,Periodic,Viscosity,CDLBEM
Boundary element method
Rheological properties
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Summary:A numerical method to simulate the periodic fibre suspension in viscoelastic fluid is developed with the completed double layer boundary element method (CDLBEM). The periodic summations that arise in the formulation were well handled by Ewald summation technique to speed up the convergence rate in the computation. The formulation for velocity field in periodic fibre suspension in viscoelastic fluid is derived and is used to simulate multiple fibres suspended in a viscoelastic shear flow. Simulations are carried out for various fibre aspect ratios and volume fractions ranging from dilute to concentrated regimes. Numerical results of macroscopic rheological properties of the system are compared to available experiments on viscoelastic fibre suspensions, and are found to agree reasonably well with the experimental data.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2008.04.058