CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Programming & Development

Injection of 2 gases at different temperature in a pipe

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 21, 2023, 04:12
Question Injection of 2 gases at different temperature in a pipe
  #1
New Member
 
imad zgheib
Join Date: May 2022
Posts: 3
Rep Power: 4
imadzg is on a distinguished road
Hello everyone, I trying to find the most suitable solver to run a simulation of 2 gases at different temperatures inside one pipe (one flow of gas A at a high temp, and a sheath flow of gas B at room temp), and see the effect of the temperature on the flow itself becuase of the density differences resulting from the temperature differences. I don't want to simply see how the temperature is changing.
the ultimate goal is to minimize the wall contacts of gas A.
I have basic knowledge in Openfoam, ive only used simplefoam before.
imadzg is offline   Reply With Quote

Old   June 21, 2023, 04:15
Default
  #2
New Member
 
imad zgheib
Join Date: May 2022
Posts: 3
Rep Power: 4
imadzg is on a distinguished road
Quote:
Originally Posted by imadzg View Post
Hello everyone, I trying to find the most suitable solver to run a simulation of 2 gases at different temperatures inside one pipe (one flow of gas A at a high temp, and a sheath flow of gas B at room temp), and see the effect of the temperature on the flow itself becuase of the density differences resulting from the temperature differences. I don't want to simply see how the temperature is changing.
the ultimate goal is to minimize the wall contacts of gas A.
I have basic knowledge in Openfoam, ive only used simplefoam before.

you can find attached a simple image to explain how my case is
Attached Images
File Type: jpg sheath.jpg (26.7 KB, 7 views)
imadzg is offline   Reply With Quote

Old   June 23, 2023, 06:50
Default
  #3
Senior Member
 
Tom Fahner
Join Date: Mar 2009
Location: Breda, Netherlands
Posts: 640
Rep Power: 32
tomf will become famous soon enoughtomf will become famous soon enough
Send a message via MSN to tomf Send a message via Skype™ to tomf
Hi,

Based on your description I guess gas A and gas B have different species as well? In that case I guess you would need to run something with rhoReactingBuoyantFoam to have all physics involved modeled correctly.

Otherwise if it is just a single species but at different temperatures, buoyantSimpleFoam or buoyantPimpleFoam can be used.

Best Regards,
Tom
tomf is offline   Reply With Quote

Old   June 25, 2023, 16:05
Default
  #4
Senior Member
 
Charles
Join Date: Aug 2016
Location: Vancouver, Canada
Posts: 148
Rep Power: 9
Marpole is on a distinguished road
You can consider using solver reactingFoam with reaction feature turned off. This allow different species and temperature inlet boundary conditions.
__________________
Charles L.
Marpole is offline   Reply With Quote

Reply

Tags
gas, mixture, openfoam, solver, temperature

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
[openSmoke] libOpenSMOKE Tobi OpenFOAM Community Contributions 562 January 25, 2023 09:21
Weird (unphysical) temperature rise with chtMultiRegionFoam Phil910 OpenFOAM Running, Solving & CFD 3 November 9, 2022 09:25
UDF - Temperature boundary condition for a pipe bundle Vilma62 Fluent UDF and Scheme Programming 0 June 18, 2015 04:25
Hand Calcs for Temperature Drop Through Pipe Tim Main CFD Forum 4 June 13, 2007 16:16
Pipe wall temperature Fred Uckfield Main CFD Forum 25 May 22, 2000 14:37


All times are GMT -4. The time now is 04:36.