|
[Sponsors] |
seeking for help about a room with negative pressure |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
November 26, 2009, 07:40 |
seeking for help about a room with negative pressure
|
#1 |
New Member
mengyue
Join Date: Sep 2009
Posts: 20
Rep Power: 17 |
hi guys,
i am trying a room with negative pressure. the details are: the pressure of this room is -620Pa, there exists a hole in some wall, and the pressure outside is 0, so the air flows into the room. to maintain the negative pressure, there exists an exhaust fan. so, how i simulate this problem to get the air field? i set the hole as pressure inlet and the value is 0, right? the depth of the wall is 0.6m, and i also set an exhaust fan and the gauge value is -620Pa and this fan can increase the pressure of the exhuasted air by 620Pa, right? but i am depressed by this simulation. the massflow rate is too big for my question and the pressure of the room is not always -620Pa. i am puzzled now. so, have you some good suggestions for my question? Ps: the hole in the wall is very very small. in fact, the question i am stuyding is the leakage of the concrete wall, so i set a hole in the wall. thanks for your help! |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Pressure BC for combustion chamber | Giuki | FLUENT | 1 | July 19, 2011 12:35 |
High pressure in rhopSonicFoam results in negative pressure | shangzung | OpenFOAM | 0 | November 5, 2009 04:24 |
negative pressure | mAx | FLUENT | 0 | January 25, 2006 15:31 |
what the result is negatif pressure at inlet | chong chee nan | FLUENT | 0 | December 29, 2001 06:13 |
Hydrostatic pressure in 2-phase flow modeling (long) | DS & HB | Main CFD Forum | 0 | January 8, 2000 16:00 |