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Temperature and shear stress depending viscositiy

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Old   April 22, 2010, 03:56
Default UDF for temperature and shear rate depending viscositiy
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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

Last edited by mannobot; April 22, 2010 at 09:43.
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