Report
Pore-scale Modeling of Viscous Flow and Induced Forces in Dense Sphere Packings
| العنوان: | Pore-scale Modeling of Viscous Flow and Induced Forces in Dense Sphere Packings |
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| المؤلفون: | Chareyre, B., Cortis, A., Catalano, E., Barthélémy, E. |
| المصدر: | Transport in Porous Media, 92(2), 473-493, 2012 |
| سنة النشر: | 2011 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Soft Condensed Matter, Physics - Fluid Dynamics |
| الوصف: | We propose a method for effectively upscaling incompressible viscous flow in large random polydispersed sphere packings: the emphasis of this method is on the determination of the forces applied on the solid particles by the fluid. Pore bodies and their connections are defined locally through a regular Delaunay triangulation of the packings. Viscous flow equations are upscaled at the pore level, and approximated with a finite volume numerical scheme. We compare numerical simulations of the proposed method to detailed finite element (FEM) simulations of the Stokes equations for assemblies of 8 to 200 spheres. A good agreement is found both in terms of forces exerted on the solid particles and effective permeability coefficients. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s11242-011-9915-6 |
| URL الوصول: | http://arxiv.org/abs/1105.0297 |
| رقم الانضمام: | edsarx.1105.0297 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s11242-011-9915-6 |
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