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

Partially premixed combustion problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 31, 2013, 13:40
Default Partially premixed combustion problem
  #1
New Member
 
shashank vummidi
Join Date: Aug 2013
Posts: 3
Rep Power: 4
shashankvu is on a distinguished road
Hey all,

I am working on a partially premixed flame burner.I have a problem in defining the species. I have 2 inlets, 1st inlet has Nitrogen, 2nd is acetylene and air. The flame is in an air environment. When I choose partially premixed combustion model I have only two options, fuel and oxidizer, so in the fuel I mention the mole fraction of acetylene and oxygen and nitrogen and in the oxidizer only Nitrogen for the one of the inlet but now because of that I cannot specify air as my fluid surface. How can I supply an additional stream? in this mode of the model.

Any help is appreciated. Thanks!
shashankvu is offline   Reply With Quote

Old   October 6, 2013, 12:21
Default
  #2
New Member
 
sofiane ouali
Join Date: Oct 2013
Posts: 3
Rep Power: 3
potion is on a distinguished road
hi, in your case, you must chose partially-premixed
potion is offline   Reply With Quote

Old   April 21, 2015, 17:45
Default
  #3
Member
 
sanjeet Limbu
Join Date: Mar 2015
Posts: 91
Rep Power: 2
sanjeetlimbu is on a distinguished road
Dear sir

i am trying to ignite the mixture by compression stroke 30ms , to attain high temp near 770K, using the chemkin file and dynamic mesh.

But i am not seeing the temperature rise in compression stroke.

Pl suggest what is wrong
Attached Images
File Type: png max volume moniter for Temp.PNG (44.8 KB, 2 views)
File Type: jpg density initial value.jpg (63.9 KB, 4 views)
File Type: jpg dynamic mesh compression.jpg (48.4 KB, 4 views)
File Type: jpg species model.jpg (46.0 KB, 3 views)
File Type: jpg Referance mesh needed.jpg (35.9 KB, 2 views)
sanjeetlimbu is offline   Reply With Quote

Reply

Tags
combustion, flame, fluent, partially premixed

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Problem on EDC model for coal combustion lei FLUENT 3 April 29, 2014 08:55
Oil combustion problem brajh11 CFX 1 December 7, 2012 02:49
Partially Premixed Combustion: Single inlet-no Outlet amita FLUENT 0 May 8, 2009 05:52
Premixed combustion in Spark Ignition engine kevin FLUENT 1 June 23, 2006 02:59
Mixture fraction in Partially premixed combustion Viktor FLUENT 1 December 30, 2005 00:30


All times are GMT -4. The time now is 16:52.