|
[Sponsors] |
March 26, 2004, 02:42 |
Moving interface
|
#1 |
Guest
Posts: n/a
|
Hi,
How can I define moving interface (or moving mesh)for two immicible fluid (for example air andwater) in a vertical tube. I tried VOF method but not converged. I don't want to mass diffusion interaction of phases. Thanks... |
|
April 7, 2004, 00:03 |
Re: Moving interface
|
#2 |
Guest
Posts: n/a
|
Just for using VoF , you do not need the Moving mesh even though the interface is moving! Switch off moving mesh. Use unsteady solver.. Use piso fopr pressure.. Start with a time step say 1 e-3 and inner iteration 50..
Best, Ady |
|
April 7, 2004, 02:17 |
Re: Moving interface
|
#3 |
Guest
Posts: n/a
|
Dear Andy,
Thanks, for your attention. I defined VOF model my problem, but the interface is interpreted other phase and then uncertain. I dont want phase interaction or mass diffusion. Are there any information this topic. Best regarding, UNAL |
|
April 13, 2004, 09:22 |
Re: Moving interface
|
#4 |
Guest
Posts: n/a
|
Hi,
U can define motion to interface if u know how it is going to deform. Best way to solve this problem is to use VoF only. I had tried with oil and waiter and it works fine. If the solution depends only on density difference, then try VoF. |
|
April 16, 2004, 10:02 |
Re: Moving interface
|
#5 |
Guest
Posts: n/a
|
Hi Mahesh Thanks...I try to solve this problem is to use VOF only. But I have a convergence problem. I choose time step is 1e-3 and pressure PISO. My fluid is water and air. Are there any other options to define problem.
best regard |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Wind turbine simulation | Saturn | CFX | 58 | July 3, 2020 01:13 |
Dynamic Mesh moving interface help | akash.iitb | FLUENT | 0 | August 23, 2010 23:53 |
RPM in Wind Turbine | Pankaj | CFX | 9 | November 23, 2009 04:05 |
Convective Heat Transfer - Heat Exchanger | Mark | CFX | 6 | November 15, 2004 15:55 |
Replace periodic by inlet-outlet pair | lego | CFX | 3 | November 5, 2002 20:09 |