CFD Online Logo CFD Online URL
Home > Forums > STAR-CD

ignition treatment for gdi engine

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

LinkBack Thread Tools Display Modes
Old   June 13, 2011, 03:33
Default ignition treatment for gdi engine
New Member
Join Date: Mar 2009
Posts: 9
Rep Power: 10
mepgzzi is on a distinguished road
Hi all,

Im trying to simulate a gdi engine working under the homogeneous mode by using the ebu latct combustion model and the numerical ignition model.

The problem i have is that it fails when igniting. There are altogether 16 cells set to be the spark and the equivalence ratio and temperature at the spark timing reach around 0.8~0.9 and 680K respectively

My question is: what is preventing the ignition? Is the temperature too low for that? if yes is there any constant or switch to set to change the allowed ignition temperature for ebu models? are there any other methods to ignite the mixture other than using the default model(e.g. applying sorent.f to the case)?

mepgzzi is offline   Reply With Quote


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
Plz help me "creation IC engine Geometry" khalaf FLUENT 8 September 28, 2016 01:10
Tutorials for Sprark Ignition Engine Santosh FLUENT 0 July 12, 2007 02:12
Premixed combustion in Spark Ignition engine kevin FLUENT 1 June 23, 2006 02:59
Ignition modeling Julie Polyakh Siemens 0 May 20, 2004 08:05
spark ignition engine Hennie van der Westhuizen Main CFD Forum 2 January 15, 2002 12:59

All times are GMT -4. The time now is 03:54.