|
[Sponsors] |
September 18, 2001, 01:25 |
Pressure boundary on buoyancy-driven flow
|
#1 |
Guest
Posts: n/a
|
I was studying the scenario that the room with fire connected with a high and long narrow space with geometry size 30m(L)x1.6m(w)x40m(H), where the top, bottom and long sides are connected to the outspace. I defined those openings as pressure boundary conditions. The room opening is connected at somewhere of long and high side wall. The problem is that before the heated air flow into this narrow space, the airflow velocity has increased to extremely large values within a few time steps. I think it's result of pressure boundary at four side of domains (top, bottom, left and right). But how to prevent such problem?
|
|
September 20, 2001, 06:25 |
Re: Pressure boundary on buoyancy-driven flow
|
#2 |
Guest
Posts: n/a
|
Hi,
I don't know if you used the ENVIRONMENTAL PRESSURE option for your pressure boundary. This option is most suited for the openings like a window. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Buoyancy Driven Flow - HELP! | Carlos | FLUENT | 2 | October 11, 2007 03:35 |
Pressure correction in Buoyancy driven flows | Aditya | Main CFD Forum | 0 | March 8, 2007 07:36 |
buoyancy driven flow | adam | FLUENT | 6 | February 14, 2005 05:11 |
buoyancy driven flow | ocy | FLUENT | 6 | December 10, 2004 14:12 |
buoyancy driven flow | Jannis Dotsikas | Main CFD Forum | 3 | October 9, 1998 09:24 |