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

Euler-Euler simulation of evaporating spray

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 4, 2007, 08:49
Default Euler-Euler simulation of evaporating spray
Xavier Ponticq
Posts: n/a
Hi All,

In my research project I'm dealing with evaporating sprays and want to compare Euler-Euler simulations to Euler-Lagrange simulations with CFX 11.0 (Euler-Lagrange simulations work fine). I wish to simulate the evaporation of a liquid spray in a gaz mixture composed of air and the liquid vapor. But I've some troubles in the set-up of mass transfert for evaporation.

I followed the modeling advice of CFX help by adding a dummy material to the liquid phase, but the results especially concerning the volume fraction are not satisfactory. Actually, using a dummy material as the constraint in the liquid phase implies that this dummy material appears from nowhere in the simulation as the pure liquid is evaporating. Thus I get a liquid volume fraction that is defined everywhere in the domain and not only where lies the liquid spray.

Adding a dummy material allows to use Component pairs models to describe the evaporation process. Without this dummy material I can't see how to use an evaporation model except by providing a value for the mass transfert coefficient. So, if you have any ideas....

  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
Sofware for spray simulation Joe Main CFD Forum 3 December 10, 2007 16:07
spray simulation CFD IƱigo Iparragirre Main CFD Forum 0 November 6, 2006 08:34
Fire simulation using FDS from NIST Jens Main CFD Forum 1 January 22, 2004 01:53
Kiva3V to simulation open-air LOW-pressure spray? G.Thibaudeau Main CFD Forum 0 March 14, 2000 07:44
3-D Contaminant Dispersal Simulation Apple L S Chan Main CFD Forum 1 December 23, 1998 10:06

All times are GMT -4. The time now is 00:56.