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

VOF - Patching

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 29, 2010, 09:10
Default VOF - Patching
  #1
New Member
 
SK
Join Date: Jul 2009
Posts: 8
Rep Power: 16
friends.sk is on a distinguished road
Halo,

I am working with VOF in 3D.

In VOF patching is required for secondary phase. In case of simple geometries its works fine with the dimension. When we have some triangular geometry, How can we patch the secondary phase?

Sketch of the geometry looks like this..



regards
SK
friends.sk is offline   Reply With Quote

Old   March 29, 2010, 09:12
Default
  #2
Senior Member
 
sega's Avatar
 
Sebastian Gatzka
Join Date: Mar 2009
Location: Frankfurt, Germany
Posts: 729
Rep Power: 20
sega is on a distinguished road
Sorry to ask, but what is 'patching'?
__________________
Schrödingers wife: "What did you do to the cat? It's half dead!"
sega is offline   Reply With Quote

Old   March 29, 2010, 09:16
Default
  #3
New Member
 
SK
Join Date: Jul 2009
Posts: 8
Rep Power: 16
friends.sk is on a distinguished road
In VOF model, while initialising we need to fill the secondary phase in the specific region and the rest with primary phase. This can be done by marking some region using adapt panel. and then using solve->initialise--> patch.
friends.sk is offline   Reply With Quote

Old   March 29, 2010, 16:20
Default
  #4
Senior Member
 
sega's Avatar
 
Sebastian Gatzka
Join Date: Mar 2009
Location: Frankfurt, Germany
Posts: 729
Rep Power: 20
sega is on a distinguished road
Sorry, I'm out. I have made experience with VOF and its theoretical background using OpenFOAM. Your question is too FLUENT-related.
I'm afraid I can't help you there.
__________________
Schrödingers wife: "What did you do to the cat? It's half dead!"
sega is offline   Reply With Quote

Old   March 31, 2010, 10:42
Default
  #5
New Member
 
Martin
Join Date: Mar 2010
Posts: 2
Rep Power: 0
Martin D! is on a distinguished road
doesn't Fluent mark the cells necessary if u just put in the coordinates? I suppose so ...
Martin D! is offline   Reply With Quote

Old   March 31, 2010, 12:57
Default
  #6
Senior Member
 
Philipov's Avatar
 
Svetlin Filipov
Join Date: Mar 2009
Location: United Kingdom
Posts: 176
Rep Power: 17
Philipov is on a distinguished road
Define the region as a separate volume and patch it
Philipov is offline   Reply With Quote

Old   April 2, 2010, 01:56
Smile VOF - Patching
  #7
New Member
 
sunqiang
Join Date: Nov 2009
Posts: 23
Rep Power: 16
matthewsun is on a distinguished road
You can first set a region in Adapt->region in fluent ,you can either set a quad region or circular one using the input coordinate . Then then you can patchthe after initialization , in the patch panel choose the second phase and set the value to 1 or so. you can check it using display->contour ->phase fraction
Hope it helps
matt
matthewsun is offline   Reply With Quote

Reply


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
UDF Defining VOF Free Surface at Outlet Alex Fluent UDF and Scheme Programming 13 August 8, 2012 16:50
OpenFOAM on MinGW crosscompiler hosted on Linux allenzhao OpenFOAM Installation 127 January 30, 2009 19:08
VOF UDF FOR PATCHING SINUSOIDAL FREE SURFACE beginner FLUENT 1 September 10, 2007 02:16
VOF Patching fluids at an angle? Brian FLUENT 0 October 26, 2005 20:58
Difficult BCs about Freesurface Simulation by VOF Yongguang Cheng FLUENT 0 September 19, 2003 07:39


All times are GMT -4. The time now is 03:43.