Density functional approach to nonlinear rheology
Density functional approach to nonlinear rheology
复制标题
非线性流变学的密度泛函方法
DOI：
10.1209/0295-5075/102/28011
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
J. Brader
中科院分区：
文献类型：
--
作者：
Johannes Reinhardt;F. Weysser;J. Brader
我们提出了一个基于密度泛函的封闭的对Smoluchowski方程的布朗粒子在剪切流。给定一个平衡自由能泛函作为输入，该理论提供了第一原理预测的流量畸变对相关函数和相关的流变量在很宽的体积分数和流速范围内。以剪切流作用下的二维硬盘为例，计算了稳态剪切和启动剪切下的对相关函数、粘度和法向应力差。
We present a density-functional–based closure of the pair Smoluchowski equation for Brownian particles under shear flow. Given an equilibrium free-energy functional as input, the theory provides first-principles predictions for the flow-distorted pair correlation function and associated rheological quantities over a wide range of volume fractions and flow rates. Taking two-dimensional hard disks under shear flow as an illustrative model, we calculate the pair correlation function, viscosity and normal-stress difference under both steady and start-up shear.
影响因子：
8.6
作者：
Koumakis, N.;Laurati, M.;Petekidis, G.
通讯作者：
Petekidis, G.