CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Fluent Multiphase

Two Fluids air and mixture

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

Like Tree1Likes
  • 1 Post By guihds

Reply
 
LinkBack Thread Tools Display Modes
Old   April 1, 2014, 08:36
Default Two Fluids air and mixture
  #1
New Member
 
Guilherme Henrique Dias Silva
Join Date: Nov 2012
Posts: 2
Rep Power: 0
guihds is on a distinguished road
Hello,

I'm trying to simulate a object with two entries, the first one only air and the second one mixture (CH4 and H2S). How can I do this?

I wanna set a velocity inlet to inlet 1 (air) and set a velocity inlet to inlet 2 (mixture).

Thanks
ozy likes this.
guihds is offline   Reply With Quote

Old   April 25, 2014, 09:23
Default
  #2
ozy
New Member
 
oguzayin
Join Date: Jan 2014
Location: France
Posts: 12
Rep Power: 3
ozy is on a distinguished road
Hi,

If you found the solution please let me to know.

My mail adresse : ooguzaydinn@gmail.com

Last edited by ozy; April 29, 2014 at 10:12.
ozy is offline   Reply With Quote

Old   May 9, 2014, 11:51
Default
  #3
Member
 
Mustafa
Join Date: May 2013
Posts: 40
Rep Power: 3
Mohawk is on a distinguished road
In creating model you need to draw two inlets and then naming them 8 mesh inlet 1 ,2
And in fluent specify velocity inlet
Mohawk is offline   Reply With Quote

Old   May 12, 2014, 12:16
Default inlet BC's
  #4
New Member
 
arrmando
Join Date: May 2014
Posts: 16
Rep Power: 3
aarratia is on a distinguished road
hey guys,

I am having the same problem. I already have 2 inlets created and meshed. My problem is that when I select "Air" for the first inlet, the other one changes from "mixture" to "Air" aswell. The same thing happens the other way around. What's going on?
aarratia is offline   Reply With Quote

Old   May 28, 2014, 00:06
Default
  #5
New Member
 
Niaz Ali Ahmed
Join Date: Jun 2010
Posts: 14
Rep Power: 6
niazaliahmed is on a distinguished road
Me too facing the same problem in ansys fluent.

Have you found any solution yet?

In Star-CCM+, we select fluids and the volume fraction of individual phase / fluid appears under the boundaries.
niazaliahmed is offline   Reply With Quote

Old   May 28, 2014, 16:42
Default
  #6
New Member
 
Sean Delfel
Join Date: Aug 2009
Posts: 27
Rep Power: 7
delfel is on a distinguished road
If it's a multiphase problem, you specify the conditions for each phase at the boundary. You do this by selecting each phase under the "Phase" dialog box in the boundary conditions panel. That way you can specify the velocity (or mass flow) for each phase at the two inlets.

This problem sounds like it could be more of a species transport problem than a multiphase problem -- if you use the species transport model, you specify the mass weighting of each phase at the boundary using the species tab for the boundary. Pretty sure that's explained clearly in the manual.
delfel is offline   Reply With Quote

Reply

Tags
mixture, multiphase, two entries

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
air flux through a boundary with air-water mixture Hale OpenFOAM Post-Processing 11 January 6, 2015 13:56
Is it possible to integrate air through a system with mixture of air and water? Hale OpenFOAM Post-Processing 1 September 30, 2013 08:57
Creating a kerosene vapour and air mixture akaero FLUENT 0 September 14, 2011 02:28
Simulation of a mixture of air / CNG (compressed natural gas) jonmec OpenFOAM Pre-Processing 0 November 13, 2009 15:24
air and water vapour mixture - multiphase model Saba FLUENT 0 February 10, 2009 13:05


All times are GMT -4. The time now is 05:29.