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

how to ignite methane air mixture

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 15, 2019, 19:56
Default how to ignite methane air mixture
  #1
Senior Member
 
Weiqiang Liu
Join Date: Feb 2018
Posts: 278
Rep Power: 7
Weiqiang Liu is on a distinguished road
hello, all

after 200000 iterations, I failed to ignite the mixture, finally. The inlet temperature is 300K. the maximum combustion temperature is 300K.

The reaction model is species transport with laminar finite rate. The gas phase mechanism is GRI 3.0. The surface mechanism is DEDUCHMAN.

A lot of methods have been used to ignite the mixture, the most promising method is to patch a 2000k temperature to the whole computation domain including fluid and solid. However, the maximum temperature is decreasing all the way down to the inlet temperature 300k.

my case is steady state and I follow all the settings in literature. I am wondering why I can not ignite the mixture?

thanks very very much for your suggestions!!

weiqiang
Weiqiang Liu is offline   Reply With Quote

Reply

Tags
catalytic combustion, igniting mixture, methane

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
Ignition of the Methane Air mixture executor CFX 0 September 16, 2015 11:58
Arrhenius coefficients for methane air single step combustion a.Asadi OpenFOAM Pre-Processing 0 August 20, 2015 04:43
How to ignite a mixture reactingFoam Bombolati OpenFOAM 1 April 25, 2013 06:54
Mixing AIR and METHANE zalho FLUENT 5 February 14, 2013 22:52
modelling of flow between methane and air satya FLUENT 5 April 3, 2009 07:32


All times are GMT -4. The time now is 00:26.