Link Search Menu Expand Document
Converted document
 Subsubsection 4.14.2.4: Powell-Eyring Model Up Subsection 4.14.2: Viscous Fluid Materials Subsection 4.14.3: General Specification of Fluid-FSI Materials 

4.14.2.5 Cross Model

The material type for a Cross model [22] is “Cross”. 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]
<m> exponent
The viscous shear stress for this material model is where Here, is the engineering shear rate.
Example:
<viscous type="Cross">
	<mu0>0.056</mu0>
	<mui>0.0035</mui>
	<lambda>1.0</lambda>
	<m>1.0</m>
</viscous>


 Subsubsection 4.14.2.4: Powell-Eyring Model Up Subsection 4.14.2: Viscous Fluid Materials Subsection 4.14.3: General Specification of Fluid-FSI Materials