 |
 |
 |
|
|
|
[Sponsors] | ||||
January 7, 2015, 09:18
|
Temperature lower than possible in closed domain
|
#1 |
|
New Member
Cezary
Join Date: Jul 2014
Posts: 5
Rep Power: 12  |
I am working on transient model of natural convection with heat source inside the closed, cylindrical domain and one BC at the wall of cylinder. The BC is contant temperature of 323 K. Initial temperature of air inside this cylinder is equal to 350 K. After a certain time of simulation the temperature inside the lower part of cylinder fall down under 323 even to 293 K. Air is treated as an ideal gas. I have to mention that I also used S2S radiation model.
How is it possible for a closed domain to acquire from calculations a temperature, which lower than BC? Radiation heat transfer is also occuring from higher to lower temp? Could anyone explain it to me? Best regards, Czarulla Last edited by Czarulla; January 8, 2015 at 10:38. |
|
|
|
|
 |
| Tags |
| closed domain, natural convection, temperature |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Problem with zeroGradient wall BC for temperature - Total temperature loss | cboss | OpenFOAM | 12 | October 1, 2018 07:36 |
| Domain Imbalance | HMR | CFX | 5 | October 10, 2016 06:57 |
| Floating point exception: Zero divide | liladhar | CFX | 11 | December 16, 2013 05:07 |
| Different conductivities for a SINGLE domain for CHT problem in CFX | Mehul | CFX | 3 | August 3, 2012 10:01 |
| CHT Problem - Domain Imbalance | Parthipan | CFX | 5 | September 11, 2007 11:13 |
Linear Mode
