non-Newtonian fluid model in ansys

pulak · September 5, 2022, 11:01

Hi,
In Fluent, when I choose a laminar viscous, I can see and choose viscous models such as Carreau, Cross, etc. while defining a material.

However, I am unable to find the above-mentioned viscous models if I choose a turbulent model (such as k-epsilon, k-omega, etc.).

I am unable to understand that is there any issue with the software side or if I am making some mistakes. I guess there would be a way to use a turbulence model and a non-Newtonian model.

Can someone please help me out with this?

A screenshot is attached for reference.

Thanks.

HHOS · September 6, 2022, 15:35

Hi,

I have no access to that version, but in earlier versions you had to activate beta features. Make no sense, but...

Another option would be to search for "Carreau" or "non-newtonian" on the quick-search bar on the top right. Might be that there is the option somewhere in the Text User Interface waiting for you.

Regards

pulak · November 14, 2022, 06:51

Thanks HHOS for your response,
I could solve the issue.

LoGaL · November 14, 2022, 08:53

Tbh however, when the flow is highly turbulent, I don't see a scenario where the physical viscosity matters that much compared to the viscosity-like effect of turbulence

November 14, 2022, 08:53		#4
LoGaL Senior Member Lorenzo Galieti Join Date: Mar 2018 Posts: 375 Rep Power: 12	Tbh however, when the flow is highly turbulent, I don't see a scenario where the physical viscosity matters that much compared to the viscosity-like effect of turbulence pulak likes this.

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September 6, 2022, 15:35		#2
HHOS Member Join Date: Jul 2013 Posts: 98 Rep Power: 13	Hi, I have no access to that version, but in earlier versions you had to activate beta features. Make no sense, but... Another option would be to search for "Carreau" or "non-newtonian" on the quick-search bar on the top right. Might be that there is the option somewhere in the Text User Interface waiting for you. Regards

November 14, 2022, 06:51		#3
pulak New Member Pulak K Ray Join Date: Sep 2018 Location: Kharagpur, India Posts: 4 Rep Power: 8	Thanks HHOS for your response, I could solve the issue.