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 Subsubsection 4.14.2.2: Carreau Model Up Subsection 4.14.2: Viscous Fluid Materials Subsubsection 4.14.2.4: Powell-Eyring Model 

4.14.2.3 Carreau-Yasuda Model

The material type for a Carreau-Yasuda model [22] is “Carreau-Yasuda”. The following material parameters must be defined:
<mu0> shear viscosity at zero shear rate, [P t]
<mui> shear viscosity at infinite shear rate, [P t]
<lambda> time constant [t]
<n> power-law exponent
<a> power-law exponent divider
The viscous shear stress for this material model is where Here, is the engineering shear rate.
Example:
<viscous type="Carreau-Yasuda">
	<mu0>0.056</mu0>
	<mui>0.0035</mui>
	<lambda>1.9</lambda>
	<n>0.22</n>
	<a>1.25</a>
</viscous>


 Subsubsection 4.14.2.2: Carreau Model Up Subsection 4.14.2: Viscous Fluid Materials Subsubsection 4.14.2.4: Powell-Eyring Model