CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

help with setting up non-newtonian model

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   December 29, 2010, 13:33
Default help with setting up non-newtonian model
Join Date: Jul 2010
Posts: 48
Rep Power: 9
gandesk is on a distinguished road
Hello all,

I am trying to simulate a two phase vof model in which one of the phases is a polymer and the other is air. When i try to define viscosity of the polymer in the properties table with non-newtonian powerlaw model, at the end it says that

"Note: Enabling energy equation as required by material density method. " and the solver is automatically enabling energy equation which I dont want to. I just want to simulate the fluid mechanics part of the case.

Please help me what wud be the problem??

gandesk is offline   Reply With Quote

Old   December 29, 2010, 18:32
Senior Member
Real Name :)
Join Date: Jan 2010
Location: United States
Posts: 192
Rep Power: 9
ComputerGuy is on a distinguished road

Depending on the model you choose for non-Newtonian behavior, a reference temperature is required. If a reference temperature is required, the energy equation must be enabled.

Please look at the Fluent manual (section 8.4.5) and you'll be able to see which non-Newtonian models require a reference temperature

ComputerGuy is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
multiphaseInterFoam for RAS turbulence model chiven OpenFOAM Bugs 8 December 6, 2017 03:08
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
multi fluid mixture model issue rystokes CFX 3 August 9, 2009 19:13
Surface roughness setting for a model in wind tunnel test section Sharon CFX 12 March 31, 2009 13:09
Advanced Turbulence Modeling in Fluent, Realizable k-epsilon Model Jonas Larsson FLUENT 5 March 13, 2000 04:27

All times are GMT -4. The time now is 23:01.