Micromechanical modeling of discontinuous shear thickening in granular media-fluid suspension
| العنوان: | Micromechanical modeling of discontinuous shear thickening in granular media-fluid suspension |
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| المؤلفون: | Daniel H. Johnson, John F. Peters, Farshid Vahedifard, Bohumir Jelinek |
| المصدر: | Journal of Rheology. 61:265-277 |
| بيانات النشر: | Society of Rheology, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Dilatant, Materials science, Mechanical Engineering, 0211 other engineering and technologies, Lattice Boltzmann methods, Stiffness, Herschel–Bulkley fluid, 02 engineering and technology, Mechanics, Condensed Matter Physics, Granular material, 01 natural sciences, Discrete element method, Physics::Fluid Dynamics, Viscosity, Classical mechanics, Mechanics of Materials, 0103 physical sciences, medicine, General Materials Science, medicine.symptom, 010306 general physics, Shear flow, 021101 geological & geomatics engineering |
| الوصف: | Shear thickening in a fluid occurs when the viscosity of the fluid increases with the increasing applied strain rate. When the rise in viscosity occurs by orders of magnitude, the fluid undergoes discontinuous shear thickening, which can be devastating in industrial applications. We present a particle-scale numerical technique that can simulate these phenomena. By coupling the discrete element method (DEM) and lattice Boltzmann method (LBM), we developed a micromechanical model that can simulate the interparticle stresses for particles that are immersed in a fluid. A comparison of the simulation results against the experimental results reported in the literature demonstrates the potential of the method as a research tool. The comparison included parametric studies to investigate the effects of solid fraction, particle-particle, and particle-wall contact stiffness. With a systematic variation of the wall stiffness, the DEM-LBM model demonstrates that increasing boundary stiffness directly increases the max... |
| تدمد: | 1520-8516 0148-6055 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::d7470b2dbb04407e90ffe98d0fb4b8f3Test https://doi.org/10.1122/1.4975027Test |
| رقم الانضمام: | edsair.doi...........d7470b2dbb04407e90ffe98d0fb4b8f3 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15208516 01486055 |
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