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-   -   Temperature and shear stress depending viscositiy (http://www.cfd-online.com/Forums/fluent/75323-temperature-shear-stress-depending-viscositiy.html)

mannobot April 22, 2010 03:56

UDF for temperature and shear rate depending viscositiy
 
Hi,

I am pretty new to UDF programming. I would like to define viscosity in terms of temperature and shear rate. The implemented model for non newtonian fluids does not fit the data of my fluid.

Is there a specified macro within FLUENT associated to shear rate? Like
C_STRAIN_RATE_MAG(c,t) for the strain rate?

Any help would be much appreciated


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