Turbulent flow of non-Newtonian fluids in Ansys 13 Fluent

emil · May 10, 2012, 07:19

Hello everyone,

I would kindly ask you for a hint if it is possible to simulate a turbulent flow of a non-Newtonian fluid in this newer version of fluent because the comand define/models/ viscous/turbulence-expert/turb-non-newtonian? doesn't seem to work anymore.

Regards

Emil

sameer10dulkar · February 23, 2013, 13:41

Hey Emil,

I am using Fluent 14.0 and there is a way to enable turbulence modelling for Non-newtonian fluids in it using the TUI command that you have mentioned.

This is how I got it to work:
First select turbulence modelling (select the model that you want to use) in models.
Then go to the TUI and type the following
define/models/ viscous/turbulence- expert/turb-non-newtonian?

and then make the material model (non newtonian fluid) that you want to model. For some reason it works like this.
You can find more information on it in the User guide 13.14.20. Section called "modelling turbulence with non-Newtonian fluids" pg# 721/791

Hope this helps.

Thanks.
Sameer

emil · February 25, 2013, 04:26

Thank you for your help!

Best regards!

May 10, 2012, 07:19	Turbulent flow of non-Newtonian fluids in Ansys 13 Fluent	#1
emil New Member Emil Baric Join Date: May 2012 Location: Graz. Austria Posts: 12 Rep Power: 13	Hello everyone, I would kindly ask you for a hint if it is possible to simulate a turbulent flow of a non-Newtonian fluid in this newer version of fluent because the comand define/models/ viscous/turbulence-expert/turb-non-newtonian? doesn't seem to work anymore. Regards Emil

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February 23, 2013, 13:41		#2
sameer10dulkar New Member Sameer Tendulkar Join Date: May 2010 Posts: 11 Rep Power: 15	Hey Emil, I am using Fluent 14.0 and there is a way to enable turbulence modelling for Non-newtonian fluids in it using the TUI command that you have mentioned. This is how I got it to work: First select turbulence modelling (select the model that you want to use) in models. Then go to the TUI and type the following define/models/ viscous/turbulence- expert/turb-non-newtonian? and then make the material model (non newtonian fluid) that you want to model. For some reason it works like this. You can find more information on it in the User guide 13.14.20. Section called "modelling turbulence with non-Newtonian fluids" pg# 721/791 Hope this helps. Thanks. Sameer

February 25, 2013, 04:26		#3
emil New Member Emil Baric Join Date: May 2012 Location: Graz. Austria Posts: 12 Rep Power: 13	Thank you for your help! Best regards!