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Numerical simulation of the expansion flow of some viscoelastic fluids

Year: 1391
COI: NICEC14_684
Language: EnglishView: 1,005
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Morteza Azizi - Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
Ahmad Ramazani S.A
Habib Etemadi M.,
Ehsan Shirzaei S.,


Numerical simulation of flow of Oldroyd-B, linear Phan-Thien-Tanner (L-PTT) and finitely extensible Nonlinear Elastic (FENE-P) viscoelastic fluids in a sudden expansion geometry with expansion ratio M/N=3.Have been done in two dimensional Cartesian coordinates. The governing equations in transient and fully developed regions were solved using open source software called OpenFOAM. This software used finite volume methods for resolution of partial differential equation of flow system. The flow pattern, including velocityprofiles, shear and normal stresses in some horizontal and vertical sections are presented. In addition, effect offlow dynamics and fluid types on flow and vortex patterns in transient and fully developed regions are presented and discussed the presented results show that existences of vortices cause to create inverse velocity and negative tension in expansion regions of the channel. Furthermore the stagnant zone can be observed at expansion region close to wall


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Azizi, Morteza and Ramazani S.A, Ahmad and Etemadi M.,, Habib and Shirzaei S.,, Ehsan,1391,Numerical simulation of the expansion flow of some viscoelastic fluids,The 14th Conference of chemical Engineering,Tehran,

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  • Tadmor, Z., & Gogos, C. G. Principles of polymer processing: ...
  • Han, C. D. Rheology and processing of polymeric materials: Oxford ...

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