CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

interFOAM/ sclsVOF. Interface representation.

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 28, 2016, 12:22
Default interFOAM/ sclsVOF. Interface representation.
  #1
Senior Member
 
Saideep
Join Date: Apr 2015
Location: INDIA
Posts: 165
Rep Power: 3
Saideep is on a distinguished road
Hi FOAMERS;

Good day!!

I have been using interfoam solver and having a difficult time to prevent smearing of the interface. I know there are several threads related touching this topic but i would like to discuss the problem in detail.

1. I tried to smooth alpha, and generate an interface curvature(k) and find capillary forces and related fluxes. Apply further filtering to the capillary forces/ fluxes to reduce the spurious currents and it works well for static cases however for dynamic cases the interface is badly smeared out.

2. Thinking of an other method available, I used the "SCLSVOF" method{Level set + VOF}. Using this method also proves to be good for static cases and further the representation of capillary forces is accurate due to the usage of the level set function to determine the surface tension force.

However, this method too is heavily influenced by the smearing out effect and it does make sense. The level set function is calculated from interfoams alpha indicator function. Everything afterwards is clear. But what would be the case if the VOF's alpha is itself wrong?

NOTE
: Here I define the level set function to act at interface with alpha value of 0.5. Smeared out interface alpha value falls below 0.5.

I would like to know if anyone were able to implement a method where the interface behavior is depicted in a meaningful way.

Waiting for your reply and advice;
-Saideep
Saideep 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
sliding mesh problem in CFX Saima CFX 45 September 22, 2015 10:53
Radiation in semi-transparent media with surface-to-surface model? mpeppels CFX 10 June 16, 2015 15:48
Question about heat transfer coefficient setting for CFX Anna Tian CFX 1 June 16, 2013 06:28
Error finding variable "THERMX" sunilpatil CFX 8 April 26, 2013 07:00
RPM in Wind Turbine Pankaj CFX 9 November 23, 2009 05:05


All times are GMT -4. The time now is 20:35.