CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > CFX

VOF Problem_Help Please !!!

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

LinkBack Thread Tools Display Modes
Old   May 26, 2005, 02:58
Default VOF Problem_Help Please !!!
Posts: n/a
A VOF scheme is used to simulate interface between liquid phase and gas phase of an air-water stratified flow and a wavy interface is obtained (Two-dimensional simulation). If we consider the wavy interface as a wave, then here comes my qeustions: (1) What are the errors (or uncertainties) of the simulated wavelength and wave amplitude? If we could consider the mesh size in the wavelength direction as the error of the wavelength and the mesh size in the wave amplitude direction as the error of the wave amplitude? (2) The simulated wave peak is very small, smaller than the mesh size in both directions, i.e., the wave peak is held within one cell (control volume). I wonder how come this happens if the interface is obtained through the interpolation of adjacent meshes? In order words, in the simulation some small wave features be resolved and the scales of these small features are smaller than the mesh sizes in both directions, how could this happen?

Many thanks for your help in advance.
  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
VOF Inlet condition Rizwan FLUENT 14 April 30, 2017 07:35
Question:Considerations about the evaporation in VOF dokeun FLUENT 10 February 24, 2011 21:47
vof + hydrostatic pressure ariorus FLUENT 0 August 7, 2009 10:57
urgent query regarding vof model plz rply Garima Chaudhary FLUENT 0 July 13, 2007 02:20
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 16:18.