|
[Sponsors] |
March 15, 2003, 09:34 |
Free-surface
|
#1 |
Guest
Posts: n/a
|
Hi all,
I am worried about my results when I want to predict air entrainment. I am using the VOF model and when I want waves to break, the solution doesn't seem right and the convergence is much worse. My colleage thinks that the VOF model is only valid for continouos free surfaces. Should I use an Eulerian mode 2 phase model for wave breaking? I am worried about smearing the interface if I do this. Has anyone got any experince of this? Thanks Joachin |
|
March 16, 2003, 03:38 |
Re: Free-surface
|
#2 |
Guest
Posts: n/a
|
Your colleage is not right. When the entrainment is too much, VOF is very expensive. For this reason, you may want to consider Eulerian approach.
Whats the equation you are using to generate the wave, or its just because of the liquid level difference/ flow in the liquid?? phd_y2k2001@yahoo.com |
|
March 20, 2003, 04:19 |
Re: Free-surface
|
#3 |
Guest
Posts: n/a
|
Hello phdy2k2001,
If I use an Eulerian approach, wont this be much more expensive and slow? I'm not sure I can afford the memory either as wont it need twice the RAM? The entrainment is set up by a sharp obstruction in the channel. Thanks Joachin |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Free surface is below than expected..results are not good | mechovator | CFX | 24 | April 8, 2011 00:41 |
Submarine Free Surface | samwh | CFX | 7 | August 30, 2009 07:14 |
Multiphase flow. Dispersed and free surface model | Luis | CFX | 8 | May 29, 2007 18:13 |
Equilibrium of a free surface under surface tensio | Ryan | Main CFD Forum | 1 | August 7, 2001 16:14 |
Modeling Free Surface Flows | Elliot Schwartz | Main CFD Forum | 5 | August 25, 1998 21:03 |