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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hulsen, Martien A.
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Topics
Publications (10/10 displayed)
- 2022Numerical Modeling of the Blend Morphology Evolution in Twin-Screw Extruderscitations
- 2022Constitutive framework for rheologically complex interfaces with an application to elastoviscoplasticitycitations
- 2021Numerical simulations of the polydisperse droplet size distribution of disperse blends in complex flowcitations
- 2020Numerical analysis of the crystallization kinetics in SLScitations
- 2020On the validity of 2D analysis of non-isothermal sintering in SLScitations
- 2019Simulation of bubble growth during the foaming process and mechanics of the solid foamcitations
- 2018Temperature-dependent sintering of two viscous particlescitations
- 2017Sintering of two viscoelastic particles: a computational approachcitations
- 2016Predicting the fountain flow instability
- 2006On the streamfunction-vorticity formulation in sliding bi-period frames : application to bulk behavior for polymer blendscitations
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article
On the streamfunction-vorticity formulation in sliding bi-period frames : application to bulk behavior for polymer blends
Abstract
The Lees-Edwards description of bi-periodic boundary conditions hasbeen extended to the streamfunction and streamfunction-vorticityformulation in sliding bi-periodic frames. The required compatibilityconditions are formulated and uniqueness of the solution is shown.The model has been implemented in a spectral element method context todescribe bulk shear behavior far away from walls, where no simpleperiodic boundary conditions can be used. In the numerical model aLagrangian multiplier is introduced to couple the shearingboundaries. The proposed method has been validated for a mathematicaltest problem; convergence is shown and the influence of the order ofapproximation of the Lagrangian multiplier is studied. Finally,results are presented for drop coalescence across the boundaries ofthe bi-periodic frame.