期刊
CHINESE JOURNAL OF POLYMER SCIENCE
卷 31, 期 11, 页码 1590-1598出版社
SPRINGER
DOI: 10.1007/s10118-013-1354-0
关键词
Polymer deformation; Monte Carlo simulation; Shear flow
资金
- National Natural Science Foundation of China [20825415, 21274061]
- National Basic Research Program of China [2011CB606100]
By means of dynamic Monte Carlo simulation of bulk lattice polymers in Couette shear flow, it was demonstrated that in addition to velocity gradient the constant driving forces acting as the activation aspect of shear stresses can also raise polymer deformation. Moreover, enhancing driving forces in a flow without any velocity gradient can reproduce non-Newtonian fluid behaviors of long-chain polymers. The simulations of Poiseuille shear flow with a gradient of shear stresses show that, the velocity gradient dominates small deformation in the flow layers of low shear stresses, while the shear stress dominates large deformation in the flow layers of high shear stresses. This result implies that the stress-induced deformation could be mainly responsible for the occurrence of non-Newtonian fluid behaviors of real polymers at high shear rates.
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