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-   -   Non-newtonian fluid flow (https://www.cfd-online.com/Forums/fluent/118425-non-newtonian-fluid-flow.html)

C.C May 27, 2013 12:35

Non-newtonian fluid flow
 
Hi all,

I'm simulating the turbulent flow of a non-Newtonian fluid in a pipe using Fluent.
I have some doubts related with the way as Fluent solve the complete set of equations:

1. As the dynamic viscosity is introduced as a function of shear rate/strain rate in an UDF, where can I find the way as Fluent solve the set of equations? Is the same way as for Newtonian fluids?

2. If the low-Re k-e turbulence model is enable: what happens when I enable the non-Newtonian modification for Lam-Bremhorst model? "/define models viscous turbulence-expert non-newtonian-mnodification?"

3. How can the low-Re k-e turbulence model implemented in Fluent be modified?

I hope someone can help me...
Regards


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