In this equation, m is the fluid consistency coefficient and n is
the flow behavior index, also called the power law index. For shear
thinning fluids, the index n has a value between zero and one,
resulting in a negative power and therefore a descending line. The
value of m is the value of the apparent viscosity when the shear
rate equals one. The power-law model applies only over a limited
range of shear rates, and in general, cannot be used to model
viscosity at very low shear rates or at very high shear rates.
In this equation, m is the fluid consistency coefficient and n isthe flow behavior index, also called the power law index. For shearthinning fluids, the index n has a value between zero and one,resulting in a negative power and therefore a descending line. Thevalue of m is the value of the apparent viscosity when the shearrate equals one. The power-law model applies only over a limitedrange of shear rates, and in general, cannot be used to modelviscosity at very low shear rates or at very high shear rates.
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