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

Mixture at the inlet in air domain

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

Like Tree1Likes
  • 1 Post By leo56

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 14, 2021, 11:02
Question Mixture at the inlet in air domain
  #1
New Member
 
Join Date: Apr 2021
Posts: 2
Rep Power: 0
leo56 is on a distinguished road
Hello,
I am currently modeling a 2D nozzle and its exhaust plume in fluent. I would like to simulate this with the products of the combustion flowing from the inlet (end of the combustion chamber, which is an edge as this is a 2D problem) while the fluid domain is the ambiant atmosphere (air). By using the mixture-template, I can set the products at the inlet but it seems that i cannot asociate this setting with a domain filled with air. Does someone have an idea ?
Thank you for your answers!

Last edited by leo56; April 15, 2021 at 05:59.
leo56 is offline   Reply With Quote

Old   April 19, 2021, 13:58
Default
  #2
Member
 
Join Date: Apr 2020
Posts: 74
Rep Power: 4
mz_uon is on a distinguished road
Hello

Have you seen the tutorial files provided by Ansys? Their example is similar to what you described your model to be.

If this is still a problem, can you share some images of the mixture template and boundary condition of the problem area?

Regards
mz_uon is offline   Reply With Quote

Old   April 20, 2021, 04:26
Default
  #3
New Member
 
Join Date: Apr 2021
Posts: 2
Rep Power: 0
leo56 is on a distinguished road
Quote:
Originally Posted by mz_uon View Post
Hello

Have you seen the tutorial files provided by Ansys? Their example is similar to what you described your model to be.

If this is still a problem, can you share some images of the mixture template and boundary condition of the problem area?

Regards
Thank you for your answer! I didn't see these files, however I found a way (confirmed by ANSYS forum administrator) to deal with this. By adding air as the last element of the mixture, I can initialize an air inlet with the other components set to 0 and the mixture inlet with the desired mole fractions. And it seems to work!
Léo
mz_uon likes this.
leo56 is offline   Reply With Quote

Reply

Tags
compressible flow, inlet, mixture, nozzle analysis

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
[OLAFLOW] The OLAFLOW Thread Phicau OpenFOAM Community Contributions 435 December 3, 2022 12:10
Can I achieve better convergence? sheaker CFX 12 September 19, 2019 16:36
Turbomachinery Mass imbalance sheaker CFX 12 September 5, 2019 09:09
Domain Reference Pressure and mass flow inlet boundary AdidaKK CFX 75 August 20, 2018 06:37
Wrong flow in ratating domain problem Sanyo CFX 17 August 15, 2015 07:20


All times are GMT -4. The time now is 22:02.