Saturday, November 1, 2008

Modelling Fluid Viscosity in Fluid Cavity

Rahul asks...
I am modeling a fluid cavity in abaqus. I need to model fluid viscosity. How can it be done?

Answer :
Fluid Cavity as such does not have Viscosity as a parameter. But if fluid is flowing from one Cavity to another then you need to use *FLUID EXCHANGE. In this keyword you can define the Bulk Viscosity.

The following is the input file implementation of it.

*FLUID EXCHANGE PROPERTY, TYPE=BULK VISCOSITY, DEPENDENCIES=n

viscous resistance coefficient, hydrodynamic resistance coefficient

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