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

get unlogic profil of reactant and product concentration in combustion reaction

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 26, 2013, 02:01
Default get unlogic profil of reactant and product concentration in combustion reaction
  #1
New Member
 
nay robin
Join Date: Jun 2013
Posts: 1
Rep Power: 0
nay robin is on a distinguished road
Hi everyone,

Im tryin to simulate combustion in combustion chamber. the fuel is gas pyrolysis (ch4, c2h6, h2, and co) it enter the domain from the bottom of the chamber. i also have air input which comes into chamber from holes at the side of chamber.

i use 3 interfaces :
-heat transfer in fluid
-turbulent k-e
-transport in diluted species

the problem is, concentration result seems so unlogic because there are some spot where the reactant increase and also only a little spot the product exist. and the product is decrease.

hopefully anyopne could help me to get out from this problem.

thank you
nay robin is offline   Reply With Quote

Old   June 26, 2013, 05:57
Default
  #2
Senior Member
 
Join Date: Dec 2011
Location: Madrid, Spain
Posts: 134
Rep Power: 15
michujo is on a distinguished road
Hi. Could you please post some pictures of your case so that people here can understand better your problem? For example velocity field, species (reactants and products) concentration field, temperature and heat release?

Cheers,
Michujo.
michujo is offline   Reply With Quote

Reply

Tags
combustion chamber, combustion modelling

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
Reaction with zero reactant.. hard33psingh@gmail.com FLUENT 0 January 21, 2010 05:43
chemical reaction - howto Dan Sorensen Siemens 1 February 21, 2000 10:20


All times are GMT -4. The time now is 23:34.