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Sutherland law for Viscosity

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Old   October 11, 2005, 20:33
Default Sutherland law for Viscosity
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Hi guys,

Quick question : for a case of an aircraft at 25000ft, the external static temperature is approximately 237Kelvin.

When I enter the viscosity in the materials panel, I chose the Sutherland 2 coefficient, with default values. From the Fluent manual however, the "moderate temperature and pressure" values are different that the default values in Fluent.

The 3-coefficient default values seems to correspond to those in the manual. Is it correct to use the 3-coef Sutherland equation with default values for this case?

Thanks Riaan
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