CFD Online Logo CFD Online URL
Home > Forums > FLUENT

effective Properties in mixture Model

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

LinkBack Thread Tools Display Modes
Old   March 8, 2013, 03:33
Default effective Properties in mixture Model
New Member
navid hgh
Join Date: Mar 2013
Posts: 1
Rep Power: 0
sunboynavid is on a distinguished road
hi all.....
We are starting to study nanofluids using two-phase mixture model. In Exerting This Model in Fluent , We have a problem and we hope you can help us about our Problem.
Our Problem is applying Effective Properties such as Conductivity , Viscosity or maybe Density in Fluent Software. You know that Fluent Default let Effective Properties in X-effective=φ*X2+(1-φ)*X1 and X1 ,X2 is Properties For Primary And Secondry phases. We want to let For example Effective Viscosity like μeffe=μf/(1-φ)0.25 in fluent. We think maybe we can solve this problem with writing a UDF for fluent ,but we donít know where we have to exert in software.
Please Help us.
sunboynavid is offline   Reply With Quote

Old   March 12, 2013, 13:45
Senior Member
Join Date: Mar 2009
Location: Washington, DC
Posts: 192
Rep Power: 7
mettler is on a distinguished road
If I remember correctly, when we did our nanofluid research we were able to define all properties in terms of temperature and let Fluent do the rest. I will have to double check on that, since we did this back in 2007/2008. Of course, this required us to measure the viscosity/conductivity at different temperatures in order to produce an equation.
mettler 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
Modelling Sand erosion using Mixture model and DPM karlchapman FLUENT 3 July 5, 2012 08:55
error message cuteapathy CFX 14 March 20, 2012 07:45
UDF for the mixture model khar nab FLUENT 0 July 31, 2008 06:29
Two-Phase Buoyant Flow Issue Miguel Baritto CFX 4 August 31, 2006 12:02
Multiphase Mixture Model fluent5.4 Julia Kullmann FLUENT 0 March 9, 2001 05:13

All times are GMT -4. The time now is 12:12.