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Old   October 11, 2007, 00:25
Default CEL error
  #1
CC
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Hi All,

I'm trying to simulate 3D blood flow using Casson model as Dynamic Viscosity. I created a material in CFX-Pre and entered data previously suggested by Opaque. Here are the details when I open the material in command editor:

LIBRARY: MATERIAL: Casson

Material Group = User

Object Origin = User

Option = Pure Substance

PROPERTIES:

Option = General Material

DYNAMIC VISCOSITY:

Maximum Shear Strain Rate = 100 [s^-1]

Minimum Shear Strain Rate = 0.001 [s^-1]

Option = Casson

Viscosity Consistency = 10 [kg m^-1 s^-1.0]

Yield Stress = 100 [Pa]

END

EQUATION OF STATE:

Density = 1050 [kg m^-3]

Molar Mass = 1e-10 [kg kmol^-1]

Option = Value

END

END END END

CFX is giving me the following error: "The parameter "Option in "/LIBRARY/MATERIAL:Casson/PROPERTIES/DYNAMIC VISCOSITY" has the value "Casson". This does not match any of the allowed values: "Value, Sutherlands Formula, Rigid Non Interacting Sphere Model".

Can anyone help with this?

Thanks, CC.
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Old   October 11, 2007, 10:14
Default Re: CEL error
  #2
opaque
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Dear CC,

Are you using ANSYS CFX 11.0? If you are, please write the definition file and see what the solver does.

The "generalized non-newtonian models" are not allowed in the GUI (beta hidden capability), but they should work in the solver.

Keep us posted, Opaque

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