CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

Define initial liquid level for VOF model

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 9, 2007, 12:02
Default Define initial liquid level for VOF model
  #1
Gab
Guest
 
Posts: n/a
Hi All,

Can someone please suggest how to define an initial liquid level for a vof model? In Fluent, there is a function 'patch' to do this. I am not sure if CFX also has a similar tool.

Thanks,

Gab

  Reply With Quote

Old   May 9, 2007, 15:30
Default Re: Define initial liquid level for VOF model
  #2
Gert-Jan
Guest
 
Posts: n/a
You can use a step function with a coordinate. For everything above x=0 to be gas use:

VfGasIni=0.999*step[x/1[m]]

VfLiquidIni=1-VfGas

Remember to provide a decent pressure distribution as well. This is very well documented in the help. Please read it good.

Another good advice is to use a minimum fraction of 1e-5. Do not use 0 as this will lead to problems.....

Gert-Jan

www.bunova.nl
  Reply With Quote

Old   May 10, 2007, 00:42
Default Re: Define initial liquid level for VOF model
  #3
Gab
Guest
 
Posts: n/a
Thanks a lot!
  Reply With Quote

Reply

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
Multiple floating objects CKH OpenFOAM Running, Solving & CFD 14 February 20, 2019 10:08
Low Mach number Compressible jet flow using LES ankgupta8um OpenFOAM Running, Solving & CFD 7 January 15, 2011 14:38
Installing OF 1.6 on Mac OS X gschaider OpenFOAM Installation 129 June 19, 2010 10:23
Computational time sunnysun OpenFOAM Running, Solving & CFD 5 March 16, 2009 04:32
Missing math.h header Travis FLUENT 4 January 15, 2009 12:48


All times are GMT -4. The time now is 16:35.