The available expressions for the effective vis-cosity can not provide good predictions compared with the experiment data measured in the semi-dilute shear flows of fiber suspension with small aspect ratio. The depart...The available expressions for the effective vis-cosity can not provide good predictions compared with the experiment data measured in the semi-dilute shear flows of fiber suspension with small aspect ratio. The departure of the theoretical prediction from the measured data increases with the decrease of the fiber aspect ratio. Therefore, by experi-ment for the fiber with 20 mm diameter, a new expression for the effective viscosity in the semi-dilute shear flows of fiber suspension with small aspect ratio is proposed, the relation-ship between the shear viscosity of fiber suspensions and the fiber concentration is given. The results show that the effec-tive viscosity is not a linear function of the fiber concentra-tion.展开更多
文摘The available expressions for the effective vis-cosity can not provide good predictions compared with the experiment data measured in the semi-dilute shear flows of fiber suspension with small aspect ratio. The departure of the theoretical prediction from the measured data increases with the decrease of the fiber aspect ratio. Therefore, by experi-ment for the fiber with 20 mm diameter, a new expression for the effective viscosity in the semi-dilute shear flows of fiber suspension with small aspect ratio is proposed, the relation-ship between the shear viscosity of fiber suspensions and the fiber concentration is given. The results show that the effec-tive viscosity is not a linear function of the fiber concentra-tion.
