|
[Sponsors] |
November 24, 2010, 09:11 |
Natural Convection in a room
|
#1 |
New Member
wawa
Join Date: Nov 2010
Posts: 24
Rep Power: 15 |
Hi guys,
I am trying to simulate natural convection in a room. I have a 150W heater inside and a constant heat flux at the walls to remove the heat from the room. This is a transient problem. I am using Pressure based solver / Ideal gas / PISO / and changed the under relaxation factors of P to 0.7, and M to 0.3. My Problem is that I am managing to get the first time step converging, but the next ones are simply vibrating/ oscillating at the same residual.. I don't know what to do !! I have tried various mesh sizes but NOTHING !!! < PLease HELP > |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
how to model natural convection in a room | sajad pouyan | FLUENT | 21 | June 6, 2014 07:25 |
Natural convection + Species in a room | Fran | FLUENT | 0 | January 29, 2009 05:21 |
Coupled vs Seg - Natural vs. Forced Convection | Alex | Siemens | 5 | December 12, 2007 04:58 |
natural convection at high Rayleigh | mauricio | FLUENT | 2 | February 23, 2005 19:43 |
Approximate Mixing due to Natural Convection | Greg Perkins | Main CFD Forum | 0 | February 12, 2003 18:43 |