CFD Online Logo CFD Online URL
Home > Forums > OpenFOAM Running, Solving & CFD

isothermal solution of chtMultiRegionFoam

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

LinkBack Thread Tools Display Modes
Old   September 16, 2012, 05:14
Default isothermal solution of chtMultiRegionFoam
New Member
Join Date: Oct 2011
Posts: 4
Rep Power: 5
pilafa is on a distinguished road

I am running a simple 2D problem with chtMultiRegionFoam. On the bottom of the domain, I have a thiner solid region. On top, a air region with air flowing on the solid.

First, I would like to test the isothermal problem. I set ALL my boundary conditions to: T=300.
On the postproc, I checked that at time=0 I have everything at T=300.

But during the solution, the temperature in the fluid domain raises!
I don't know where this heat comes from since I have everything at the same temperature.
Any idea?

Attached image is the T field at the end of the solution.

Attached Images
File Type: jpg tfinal.jpg (21.2 KB, 23 views)
pilafa is offline   Reply With Quote

Old   October 1, 2012, 11:10
New Member
Join Date: Jul 2012
Posts: 21
Rep Power: 5
turbulencious is on a distinguished road

have you tried a more densed mesh? or a low maximum Courant number (/lower timestep)?

turbulencious is offline   Reply With Quote


chtmultiregionfoam, temperature

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
grid dependancy gueynard a. Main CFD Forum 19 June 27, 2014 21:22
Integrated conjugate heat transfer solver in OpenFOAM hjasak OpenFOAM Running, Solving & CFD 168 June 27, 2013 01:56
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 02:58
Mesh independent solution CFX Begineer CFX 0 October 27, 2002 11:54
Wall functions Abhijit Tilak Main CFD Forum 6 February 5, 1999 02:16

All times are GMT -4. The time now is 15:30.