期刊
SOFT MATTER
卷 12, 期 3, 页码 914-924出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sm02326b
关键词
-
类别
资金
- Engineering and Physical Sciences Research Council (EPSRC)
- Johnson Matthey through a CASE studentship award
- Engineering and Physical Sciences Research Council [1308450] Funding Source: researchfish
We propose a unifying rheological framework for dense suspensions of non-Brownian spheres, predicting the onsets of particle friction and particle inertia as distinct shear thickening mechanisms, while capturing quasistatic and soft particle rheology at high volume fractions and shear rates respectively. Discrete element method simulations that take suitable account of hydrodynamic and particle-contact interactions corroborate the model predictions, demonstrating both mechanisms of shear thickening, and showing that they can occur concurrently with carefully selected particle surface properties under certain flow conditions. Microstructural transitions associated with frictional shear thickening are presented. We find very distinctive divergences of both microstructural and dynamic variables with respect to volume fraction in the thickened and non-thickened states.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据