|
[Sponsors] |
Incompressible Ideal Gaz in a closed system - Help |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
July 31, 2008, 08:53 |
Incompressible Ideal Gaz in a closed system - Help
|
#1 |
Guest
Posts: n/a
|
Hey everyone,
Can you think of any example where it can be relevant to use the Incompressible Ideal Gaz density formulation together with a closed system, and run a transient simulation where you heat up the system? I'm just curious (I've tried it, it doesn't crash, but my results do not make any sense: some mass seem to disapear from my closed system, and ALL my particles are moving towards the cold reagion, i.e. no recirculation... what's happening??) Thanks a lot for your insight. /JB |
|
July 31, 2008, 15:56 |
Re: Incompressible Ideal Gaz in a closed system -
|
#2 |
Guest
Posts: n/a
|
prob something to do with the boundaries... how do you have them set?
|
|
August 1, 2008, 05:16 |
Re: Incompressible Ideal Gaz in a closed system -
|
#3 |
Guest
Posts: n/a
|
my test case is very simple: it's a square (2d model). 3 walls out of 4 are adiabatic. the 4th wall has a fixed temperature. I initialize the solution with an homogemeous lower temperature, and then run a transient analysis.
The tank heats up, but the velocity results do not make any sense to me. Again, maybe it's just dumb to use IIG density formulation in a closed tank. But once again, I'd like to understand what's happening... do I need to go through a 500 page book for that, or do you guys have an OK simple explanation for me? Thanks /JB |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Incompressible Ideal gas law | Leverkin | FLUENT | 5 | March 5, 2009 17:41 |
Ideal system configuration for fluent | hari | FLUENT | 0 | November 8, 2007 00:17 |
Combustion in a closed System | Martin Castillo | FLUENT | 3 | June 20, 2007 22:38 |
difference between ideal gas and incompressible? | Ric | Main CFD Forum | 1 | March 24, 2007 13:07 |
closed system calculation | Neil MacLeod | Main CFD Forum | 1 | May 13, 1999 16:47 |