|
[Sponsors] |
September 23, 2007, 01:35 |
Negative pressure
|
#1 |
Guest
Posts: n/a
|
This might seem silly to some guys. I am doing a fuel cell project. I have two flow channels. The problem I am facing is that I get negative absolute pressures on one of the flows(I do see velocities on both the sides). I don't know what the problem is. Please give me an idea as to what I am doing wrong.
|
|
September 27, 2007, 05:00 |
Re: Negative pressure
|
#2 |
Guest
Posts: n/a
|
Check the physics of the model. Check if there is any phase change. If you do not model this you may get the negative pressure. e.g. cavitation in case of liquid fluids. If the fluid is gaseous, switch on compressibility.
Secondly wait to get the full convergence. It may vanish after some time. Hope this helps |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pressure BC for combustion chamber | Giuki | FLUENT | 1 | July 19, 2011 11:35 |
seeking for help about a room with negative pressure | mengyue1 | FLUENT | 0 | November 26, 2009 06:40 |
High pressure in rhopSonicFoam results in negative pressure | shangzung | OpenFOAM | 0 | November 5, 2009 03:24 |
negative pressure in cfx | flar.t | CFX | 1 | December 18, 2006 23:20 |
negative pressure | mAx | FLUENT | 0 | January 25, 2006 14:31 |