[ngjaeho]

Hi,

This is Jaeho, beginner of OpenFOAM studying and learning practical techniques specifically OpenFOAM which is open source as well as everybody knows.
I would like to ask advice to exprienced people.

I am trying to simulate extrusion die with

1) incompressible
2) steady state
3) Laminar
4) Non-Newtonian (Power-law fluid value of K(Pa.s), n(-"-), Viscosity_min(Pa.s), Viscosity_max(Pa.s) are given).

Recently I am using Helyx(v2.1.1) that is very nice GUI for the condition setup which looks easy for me.

When I set up as incompressible and steady, it is automatically setting-up the solver as simpleFoam but I cannot see any viscous model setup.

Meshing has well done by fluent3DMesh into OpenFOAM, simpleFoam solver is working very well. But I think that is as a newtonian fluid setup in which much less precise result compare to power-law model for real case.

In regards to the consditions above, how can I start non-newtonian power-law fluid with simpleFoam?

my questions are :

1) how can I setup simpleFoam with NonNewtonian fluid?
2) Is it possible to setup power-law visco-model in the Helyx GUI?


Thank you

Regards

Jaeho

[Tushar@cfd]

Originally Posted by ngjaeho

Hi,

This is Jaeho, beginner of OpenFOAM studying and learning practical techniques specifically OpenFOAM which is open source as well as everybody knows.
I would like to ask advice to exprienced people.

I am trying to simulate extrusion die with

1) incompressible
2) steady state
3) Laminar
4) Non-Newtonian (Power-law fluid value of K(Pa.s), n(-"-), Viscosity_min(Pa.s), Viscosity_max(Pa.s) are given).

Recently I am using Helyx(v2.1.1) that is very nice GUI for the condition setup which looks easy for me.

When I set up as incompressible and steady, it is automatically setting-up the solver as simpleFoam but I cannot see any viscous model setup.

Meshing has well done by fluent3DMesh into OpenFOAM, simpleFoam solver is working very well. But I think that is as a newtonian fluid setup in which much less precise result compare to power-law model for real case.

In regards to the consditions above, how can I start non-newtonian power-law fluid with simpleFoam?

my questions are :

1) how can I setup simpleFoam with NonNewtonian fluid?
2) Is it possible to setup power-law visco-model in the Helyx GUI?


Thank you

Regards

Jaeho

Dear Jaeho Lee,

If you are still exploring what to do, I would suggest you to use nonNewtonianicoFoam solver for your case. I hope, I am not replying very late. Please excuse for the delay.

-
Best Regards!