CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

dpm and edc convergence

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

LinkBack Thread Tools Search this Thread Display Modes
Old   March 22, 2006, 07:34
Default dpm and edc convergence
Posts: n/a
i'm studing a combustion chamber feeded by injection of liquid kerosene. i use the dpm model with a plain orifice atomizer. when i simulate combustion with finite-rate\ed model everything is ok; the fuel evaporate fastly and burn with good efficency. if i use the edc model the droplet takes a longer time to evaporate and this cause the extintion of the flame in a region but the bigger problem is that the continuity and energy residual doesn't go under 10-2. i've tried to change under-relaxation factor but there's no changes. my setting for dpm are: steady particle tracking; 1 iteration per 10 continous flow it. edc- defalt settings an 1 iteration per flow it ( i tried to increase this value butnothing change)

  Reply With Quote


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
Diesel Combustion with DPM simulation Kamil Sobczak FLUENT 2 March 29, 2016 04:58
Problem on EDC model for coal combustion lei FLUENT 4 September 3, 2015 09:39
DPM model problem wwa FLUENT 7 May 4, 2010 09:26

All times are GMT -4. The time now is 08:24.