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

smooth interface with VOF models

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 21, 2012, 18:58
Default smooth interface with VOF models
  #1
Member
 
navid
Join Date: Jan 2010
Posts: 89
Rep Power: 7
ndabir is on a distinguished road
Hi,

I am simulating bubble collapse close to a wall. when I want to patch pressure and temperature to the inside of bubble, I realize that the bubble interface is sharp (although I have a fine mesh). Does anybody know what can I do to smooth the interface? I read somewhere in other posts that I can use TUI command: rpsetvar 'patch/vof? #t

I don't know where to use this command. Can anybody help me please.
ndabir is offline   Reply With Quote

Old   June 25, 2012, 04:56
Default
  #2
New Member
 
Elias Paez
Join Date: Nov 2011
Location: Madrid
Posts: 25
Rep Power: 5
sicfred is on a distinguished road
Hi,

Are you using the vof explicit method with geo-recronstuction?, because, if you are using this method, i think your mesh is not fine enough.
sicfred is offline   Reply With Quote

Old   July 6, 2012, 12:35
Default
  #3
Member
 
navid
Join Date: Jan 2010
Posts: 89
Rep Power: 7
ndabir is on a distinguished road
Yes I am using that method. But I have even refined the mesh near and inside the bubble (around 0.5 million nodes) but still can get smooth pressure contours. any idea how fine should I make the mesh?
ndabir is offline   Reply With Quote

Reply

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 interface compression and mesh size idrama OpenFOAM 1 September 26, 2010 06:36
VOF - interFoam - strafitied Flow - bug in shear stress continuity at interface AnjaMiehe OpenFOAM Bugs 0 December 17, 2009 06:46
VoF Interface definition Anto CD-adapco 2 January 19, 2009 06:05
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55
VOF model and interface! Adel Ataki FLUENT 2 March 11, 2002 23:04


All times are GMT -4. The time now is 05:13.