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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 173 - 181 (9page)
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초록· 키워드
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In this study, we performed three dimensional viscoelastic flow simulations with freely suspended platelet particles for the application of effective coloring of polymers. The model problem with a partial drag surface mimics a recently proposed design to remove typical platelet particle orientation near the weld line. A standard combination for the particulate viscoelastic flow simulation techniques is employed: (i) the discrete viscous elastic stress splitting (DEVSS) scheme for the stable solution of the viscoelastic flow; (ii) the discontinuous Galerkin (DG) method to deal with the convection term in the viscoelastic stress evolution equation; (iii) a fictitious domain method (the rigid-shell description) for implicit treatment of the hydrodynamic interaction between particles and fluid. Through example problems with a single, two and many platelet particles, we report that the angular rotation of platelet particles is significantly reduced in a viscoelastic (Giesekus) fluid compared with that in a Newtonian fluid and that non-uniform angular rotation of particles can be generated by the spatial distribution of particles, which facilitates enhanced orientational dispersion by randomizing the platelet particle orientation.
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참고문헌 (14)
참고문헌 신청
Advani, S.G / 1987 / The use of tensors to describe and predict fiber orientation in short fiber composites / J. Rheol 31:751~784
d'Avino, G. / 2008 / Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results / J. Rheol 52:1331~1346
Baaijens, F.P.T. / 1998 / Mixed finite element methods for viscoelastic flow analysis: a review / J. Non-Newtonian Fluid Mech 79:361~385
Folgar, F / 1984 / Orientation behavior of fibers in concentrated suspensions / J. Reinforced Plast. Compos 3:98~119
Fortin, M / 1989 / A new approach for the FEM simulation of viscoelastic flows / J. Non-Newtonian Fluid Mech 32:295~310
d'Avino, G. / 2008 / Rotation of a sphere in a viscoelastic liquid subjected to shear flow. Part I: Simulation results / J. Rheol 52:1331~1346
Baaijens, F.P.T. / 1998 / Mixed finite element methods for viscoelastic flow analysis: a review / J. Non-Newtonian Fluid Mech 79:361~385
Folgar, F / 1984 / Orientation behavior of fibers in concentrated suspensions / J. Reinforced Plast. Compos 3:98~119
Fortin, M / 1989 / A new approach for the FEM simulation of viscoelastic flows / J. Non-Newtonian Fluid Mech 32:295~310
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