Rheology of fiber suspensions in viscoelastic media: Experiments and model predictions

2001 ◽  
Vol 45 (4) ◽  
pp. 945-962 ◽  
Author(s):  
A. Ramazani S. A. ◽  
A. Ait-Kadi ◽  
M. Grmela
Keyword(s):  
Fiber Suspensions ◽  
Viscoelastic Media ◽  
Model Predictions

RESEARCH ON THE SPECIFIC VISCOSITY OF SEMI-CONCENTRATED FIBER SUSPENSIONS

2008 ◽  
Vol 22 (29) ◽  
pp. 2857-2868
Author(s):  
ZHANHONG WAN ◽  
JIANZHONG LIN ◽  
ZHENJIANG YOU ◽  
HAI DING
Keyword(s):  
Aspect Ratio ◽  
Fiber Suspension ◽  
Constructive Model ◽  
Fiber Suspensions ◽  
Small Aspect Ratio ◽  
Concentric Cylinder ◽  
Concentrated Suspensions ◽  
Specific Viscosity ◽  
Model Predictions ◽  
Transient Shear Flow

The viscosity properties of the semi-concentrated suspensions of fibers with small aspect ratio were investigated in transient shear flow using a concentric cylinder geometry. Experimental results were compared with predictions by utilizing the constructive model developed by Batchelor in conjunction with the hybrid closure proposed by Advani and Tucker. To rectify the discrepancy between the theoretical prediction available at the present time and the measured data, a new expression for the specific viscosity in the semi-concentrated shear flows of fiber suspension is proposed allowing for the effects of the fiber–fiber interactions and the finite-aspect-ratio fiber. The results show that the model predictions for the fiber suspensions of different aspect ratio and concentration are fairly good.

COMPARISON OF RHEOLOGICAL PROPERTIES OF FIBER SUSPENSIONS WITH MODEL PREDICTIONS

2004 ◽  
Vol 24 (6) ◽  
Author(s):  
M. Sepehr ◽  
P.J. Carreau ◽  
M. Grmela ◽  
G. Ausias ◽  
P.G. Lafleur
Keyword(s):  
Rheological Properties ◽  
Fiber Suspensions ◽  
Model Predictions
Sign in / Sign up

Export Citation Format

Share Document