期刊
PHYSICAL REVIEW E
卷 102, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.102.042906
关键词
-
资金
- National Science Foundation [DMR-1809318]
We carry out numerical simulations of athermally sheared, bidisperse, frictionless disks in two dimensions. From an appropriately defined velocity correlation function, we determine that there are two diverging length scales, xi and l, as the jamming transition is approached. We analyze our results using a critical scaling ansatz for the correlation function and argue that the more divergent length l is a consequence of a dangerous irrelevant scaling variable and that it is xi, which is the correlation length that determines the divergence of the system viscosity as jamming is approached from below in the liquid phase. We find that xi similar to (phi(J) - phi)(-v) diverges with the critical exponent v = 1. We provide evidence that xi measures the length scale of fluctuations in the rotation of the particle velocity field, while l measures the length scale of fluctuations in the divergence of the velocity field.
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