.png){kind=icon}
返回
Nonlinear elastic polymers in random flow
.png){kind=icon}
OA
AI
DOI：10.1017/S0022112005005951.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Polymer stretching in random smooth flows is investigated within the framework of the FENE dumbbell model. The advecting flow is Gaussian and short-correlated in time. The stationary probability density function of polymer extension is derived exactly. The characteristic time needed for the system to attain the stationary regime is computed as a function of the Weissenberg number and the maximum length of polymers. The transient relaxation to the stationary regime is predicted to be exceptionally slow in the proximity of the coil-stretch transition.
Keyword:
COIL-STRETCH TRANSITION
SHEAR-FLOW
TURBULENCE
DYNAMICS
