CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent UDF and Scheme Programming

A question about UDF utility in mixture and multiphase model

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 7, 2011, 17:32
Default A question about UDF utility in mixture and multiphase model
  #1
Member
 
Join Date: Mar 2011
Posts: 38
Rep Power: 15
aleisia is on a distinguished road
Hi!

I'm trying to model a filter without using porous medium: In a 3D model with air and another gaseous substance (say, SO2) as a mixture, there is a volume, I want to get the mass flow rate of the mixture at one inlet surface of the volume, and reduce it to 1% of the inlet value, and set this new value as the boundary condition at the outlet surface of the volume, then set the SO2 mass flow rate difference between inlet and outlet surface as the sink rate of the volume.

In order to do that, I have some questions:

1. Both air and SO2 are gaseous, so I can use mixture mode, instead of Euler multiphase model, right?

2. Using mixture model, do I have to use the utilities looping over phase domains in a mixture? I mean, they are both at the same gaseous phase, there is no phase interface, right? If so, how do I get the info of SO2 and air mass flow rate at the inlet surface?

3. Can I use F_PROFILE(f,t,n) n is used to specify SO2 or air, instead of writing sub_domain_loop, am I getting this right?

Thanks!
aleisia is offline   Reply With Quote

Reply


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mixture model for Multiphase flows sandisk FLUENT 0 January 23, 2011 19:05
How to include lift forces/wall lubrication forces in the MIXTURE multiphase model? hohomm FLUENT 0 December 17, 2009 06:45
MULTIPHASE - FREE SURFACE & MIXTURE MODEL Aris FLUENT 3 April 28, 2009 12:46
air and water vapour mixture - multiphase model Saba FLUENT 0 February 10, 2009 13:05
Multiphase Mixture Model fluent5.4 Julia Kullmann FLUENT 0 March 9, 2001 06:13


All times are GMT -4. The time now is 09:30.