CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS

Multi Component Flow Modeling

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 23, 2011, 21:13
Default Multi Component Flow Modeling
  #1
New Member
 
Join Date: Jun 2011
Posts: 3
Rep Power: 14
bmatsuo is on a distinguished road
Greetings,

I am a relatively new user to ANSYS FLUENT 13.0, but am jumping right into dirty details of it. The area that I'm having trouble with is modeling three different real fluids, two at a time in the mixture. These fluids will be operating at supercritical temperatures and pressures. I have found and figured out how to model the mixture using the NIST Real Gas Models, but when I switch one of the fluids, FLUENT says it does not have the data necessary to solve. I do understand that FLUENT has its limitations with the NIST Real Gas Models, as it is stated in the User's Manual at the end of section 8.16.4.3.1.

The solution I came up with was to use the User-Defined Real Gas Model to model the mixture. I am not real familiar with writing UDFs, but is it possible to model a mixture of supercritical fluids? If so, are there any tips or examples of the UDF's that anyone can share with me?

Thank you in advance!
bmatsuo is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Viscoelastic flow modeling in rotorstator system vulda OpenFOAM Running, Solving & CFD 4 December 25, 2017 04:01
Add total mass using sources to multi component fluids mullenc525 CFX 1 February 5, 2011 05:56
multi component ranap Main CFD Forum 1 October 8, 2008 04:00
Inviscid Drag at subsonic, subcritical Mach # Axel Rohde Main CFD Forum 1 November 19, 2001 13:19
CFD Modeling of Two-phase Flow in Small Dia.Tubes Eric Poindexter Main CFD Forum 2 September 22, 2000 10:21


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