|
[Sponsors] |
December 14, 2002, 22:48 |
VOF steady state?
|
#1 |
Guest
Posts: n/a
|
I have been running VOF simulations with a commercial CFD program. The problem is prety simple, a drop of liquid falling over a sphere at very small liquid velocities. Air is flowing around at velocities 50% higher. The simulations have reached 12 real seconds but the streamline keep on changing. May I expect to reach to steady state?
Thnx for any idea. CFD Newbie |
|
December 16, 2002, 01:00 |
Re: VOF steady state?
|
#2 |
Guest
Posts: n/a
|
|
|
December 16, 2002, 01:03 |
Re: VOF steady state?
|
#3 |
Guest
Posts: n/a
|
From VOF steady state converged solution using Fluent, I have got many baaaad results (which doesn't make any sense). I am not sure with other softwares. I suspect, the mesh I developed was wrong, so I am focusing on this, rather runing too many cases using Fluent.
How much confident you are about your mesh (aspect ratio, growth rate) and how much refined mesh you have on the interface?? Alisa |
|
December 16, 2002, 01:23 |
Re: VOF steady state?
|
#4 |
Guest
Posts: n/a
|
The mesh is quite simple ( I'm using also Fluent)using simple tetrahedral elements. I have refined the domain globally and not only in the interface as the shape is important but there are also other phenomena I want to model in the interior of the liquid. The shape I got does not much sense but the worst is that steady state seems far still.
Thnx for your reply Cfd Newbie |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
mass flow in is not equal to mass flow out | saii | CFX | 12 | March 19, 2018 06:21 |
plz help,urgent, vof model steady state | Garima Chaudhary | FLUENT | 4 | March 15, 2018 13:22 |
Constant velocity of the material | Sas | CFX | 15 | July 13, 2010 09:56 |
VOF steady state : river : floating point error | marion | FLUENT | 1 | May 31, 2007 10:44 |
Steady state at vof!! | Heydari | FLUENT | 6 | December 22, 2002 08:27 |