CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

Fire dynamic Simulator under ventilated compartment

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 17, 2021, 19:48
Question Fire dynamic Simulator under ventilated compartment
  #1
New Member
 
Join Date: Jan 2021
Posts: 2
Rep Power: 0
Waseem_FDS is on a distinguished road
I am simulating an under-ventilated experiment. Because of the wrong predictions of the oxygen concentration, the plume is moving towards the opening.
I think the problem is caused by the mixed is burnet (fast chemistry) assumption that is used in the combustion model, the assumption is called mixed is burnt or fast chemistry assumption. The smoke view shows that:
The oxygen in the room is consumed
Then, the fuel starts combusting when it contacts the oxygen near the opening
Then, the plume is at the opening, not above the burner
Then I got unrealistic results for the room temperature and the height of the flame
How to overcome this, without using the DNS?
Waseem_FDS is offline   Reply With Quote

Reply

Tags
fds, fire dynamics simulations, fire simulation, flame blowout, flame propagation

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
compartment Fire simulation using fireFoam DineshMyilsamy OpenFOAM Running, Solving & CFD 0 June 19, 2019 22:26
Fire and smoke modeling CFDST CFX 84 April 30, 2019 07:01
[blockMesh] compartment fire meshing abtin_c4 OpenFOAM Meshing & Mesh Conversion 0 November 5, 2014 16:06
AVL Fire dynamic mesh hamedhamed Main CFD Forum 0 March 11, 2013 09:55
openFoam for fire dynamic simulation hadi1982 OpenFOAM 2 November 2, 2009 05:30


All times are GMT -4. The time now is 11:17.