|
[Sponsors] |
February 14, 2009, 07:19 |
Radiation with adiabatic wall
|
#1 |
Guest
Posts: n/a
|
Hi experts!! I have a simple box with inlet, outlet and one windows,it's 2d, there is radiation, I have a radiation source and the the thermal radiation model is Monte Carlo. my domain is air. I would set adiabatic wall (the wall is only the line of the box, it hasn't thickness), but the problem is that if I set adiabatic wall, the temperature near the wall decreases also of 100 degree. the tutorial with radiation has only a fixed temperature wall, not adiabatic... (with a fixed temperature my model works, but it isn't as my physical case...). How could I resolve it? thanks
|
|
June 20, 2014, 13:43 |
|
#2 |
New Member
HH
Join Date: Apr 2014
Posts: 12
Rep Power: 12 |
I have the same problem. Can anyone guide me what to do with that? When I use adiabatic boundary condition (thermal energy) on the wall , I have non zero heat flux on the wall. What is the reason?
|
|
June 23, 2014, 10:47 |
|
#3 | |
Senior Member
Join Date: Jun 2009
Posts: 1,865
Rep Power: 33 |
From the documentation (heat transfer boundary condition section):
Quote:
Hope the above helps, |
||
June 23, 2014, 12:00 |
|
#4 |
New Member
HH
Join Date: Apr 2014
Posts: 12
Rep Power: 12 |
Dear Opaque,
Thank you very much for your response. |
|
June 27, 2014, 02:33 |
|
#5 |
Senior Member
Marcin
Join Date: May 2014
Location: Poland, Swiebodzin
Posts: 313
Rep Power: 13 |
you can change from adiabatic to thin wall (with defined outside temperature and thermal conductivity if you know this values from your BCs).
|
|
June 27, 2014, 12:55 |
|
#6 |
New Member
HH
Join Date: Apr 2014
Posts: 12
Rep Power: 12 |
Thank you Martin_Sz. It is a good idea.
|
|
October 17, 2016, 08:59 |
|
#7 | |
New Member
Vijaya Kumar. G
Join Date: Jun 2016
Location: Chennai, India & Aachen, Germany
Posts: 20
Rep Power: 10 |
Quote:
|
||
October 17, 2016, 18:39 |
|
#8 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,844
Rep Power: 144 |
No idea. Try the openfoam forum.
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
natural convection | mehrdadeng | CFX | 10 | February 25, 2011 06:25 |
Wall radiation + Fluid reaction | Alberto Guerra | CFX | 1 | January 6, 2006 16:37 |
adiabatic wall boundary of conjugate heat transfer | tomosada | Siemens | 1 | May 13, 2005 01:14 |
Radiation problem with one wall | bkoh | Siemens | 2 | March 3, 2005 21:21 |
Radiation flux to the wall surface | Jason | Phoenics | 1 | May 26, 2004 02:13 |