CFD Online Logo CFD Online URL
Home > Forums > FLUENT

can melting model and vof model be used together?

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

LinkBack Thread Tools Display Modes
Old   August 30, 2005, 22:30
Default can melting model and vof model be used together?
Posts: n/a
hi! high power laser beams melt a metal,the recoil pressure from its evaporation gas will act on the metal pool,the free surface of pool will be sunken and become a keyhole which is full of metal gas in metal pool.i want to track the evolution of free surface.can melt model and vof model be used together? how to do it? thanks!
  Reply With Quote

Old   August 31, 2005, 04:33
Default Re: can melting model and vof model be used togeth
Posts: n/a
Hi, yes I think you can use both melting and VOF model for keyhole formation in laser welding ...

Papers from UMR involve two phase take detail account of weld pool fluid mechanics. If you go to Tsai's web page, you will find he has dealt extensively on the "key-hole" phenomenon :

where you will find the details... I think you have to use udf for surface tension (marangoni the free surface ..and also for pressure recoil of the vapour. What are the equations of the model that you can not introduce into the model using UDFs...???
  Reply With Quote

Old   April 6, 2011, 09:45
Default recoil pressure effect in laser welding
New Member
Join Date: Aug 2010
Posts: 1
Rep Power: 0
rajeshkumar is on a distinguished road
sir, i need to add the source terms (recoil pressure and surface tension effects) into the momentum equation. so i need udf for that. can you help.

rajeshkumar 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
Weld surface deformation by VOF model minhaj_iut FLUENT 3 March 17, 2016 05:57
question about Heat transfer between two phases with VOF model sooroo3 FLUENT 0 February 15, 2011 04:24
Equivalent source in VOF model of polymer melting Marcowitz FLUENT 0 February 21, 2008 07:11
plz rply urgent regrding vof model for my system garima chaudhary FLUENT 1 July 20, 2007 08:37
free surface of VOF and melting model? wanghong FLUENT 3 March 13, 2006 10:57

All times are GMT -4. The time now is 16:17.