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-   -   Sutherland law for Viscosity (http://www.cfd-online.com/Forums/fluent/38199-sutherland-law-viscosity.html)

Riaan October 11, 2005 20:33

Sutherland law for Viscosity
 
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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