CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Fluent Multiphase

Evaporating UDF with VOF

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 26, 2013, 09:37
Default Evaporating UDF with VOF
  #1
New Member
 
Join Date: Jul 2013
Posts: 14
Rep Power: 3
zacfranki is on a distinguished road
Hi everyone,
i'm trying to model on fluent the behaviour of a partially filled vessel engulfed by fire, so it' important to be able to predict the position of the interface between the liquid and the vapor phase and also subcooled boiling near the wall to the interface. For the interface i used the vof model according to literature, but for the boiling i have to build a udf. I think that the right wai is build a DEFINE_SOURCE for the energy equation but i don't know how is called the term of evaporating/condensing model coming from hertz-knudsen theory (m dot form l to v and viceversa). Can somehone help me?

Thanks
David
zacfranki is offline   Reply With Quote

Reply

Tags
vof phase change udf

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
VOF condensation udf foolstop Fluent UDF and Scheme Programming 0 May 8, 2012 09:15
UDF: how to identify interface in VOF model process.abhi Fluent UDF and Scheme Programming 2 April 19, 2012 02:11
help; UDF of VOF model Jay FLUENT 1 March 5, 2005 00:00
UDF for ellipse shape volume patch in VOF model nazeem FLUENT 1 October 8, 2004 11:22
udf for VOF ! Adel Ataki FLUENT 1 October 29, 2001 10:31


All times are GMT -4. The time now is 12:22.