|
[Sponsors] |
April 14, 2013, 03:12 |
Oscillating of Interface in VOF method
|
#1 |
New Member
amir mofakham
Join Date: Feb 2011
Posts: 14
Rep Power: 15 |
Hi
I want to use fluent to simulate the motion of a slug through a 2D channel. I used -explicit VOF method -pressure-velocity Coupling= SIMPLE SPATIAL DISCRETIZATION -Gradient= least Squares cell based -Pressure= Presto -Momentum= Second Order Upwind -VOlume Fraction=Geo-Reconstruct I enable Surface Tension force and wall adhesion. I adjust the value of contact angle and surface tension equal to 135 degree and 0.47. Any other force is not applied to the slug. First I just want to study the performance of fluent on simulation of two phase flow. When I run fluent, I find out the interface of slug is oscillating and the value of contact angle is not fixed equal to 135 degree. How can I get ride of this oscillating? Thanks in advance Last edited by amir.mofakham; April 14, 2013 at 17:49. |
|
April 14, 2013, 12:14 |
|
#2 | |
Senior Member
Khalid Baker
Join Date: Mar 2009
Location: IRAQ
Posts: 168
Rep Power: 17 |
Can you post a picture illustrates the interface motion this will give best understanding for your problem and give more chances to answered it?
kbaker Quote:
|
||
April 14, 2013, 17:52 |
|
#3 |
New Member
amir mofakham
Join Date: Feb 2011
Posts: 14
Rep Power: 15 |
||
April 15, 2013, 10:27 |
|
#4 |
Senior Member
Khalid Baker
Join Date: Mar 2009
Location: IRAQ
Posts: 168
Rep Power: 17 |
Hey as I see from your image this type of flow is not slug. The water region just compressed and expands but why the water not move down the channel? what prevent it from moving?
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Interface for Multiple reference of frame method | Ehab44 | FLUENT | 4 | April 12, 2013 04:48 |
VOF interface compression and mesh size | idrama | OpenFOAM | 1 | September 26, 2010 06:36 |
VOF vs Level Set Method for electrohydrodynamic waves | Rowland | Main CFD Forum | 0 | July 31, 2010 22:09 |
RPM in Wind Turbine | Pankaj | CFX | 9 | November 23, 2009 04:05 |
Inconstant Surface Tension on Interface in VOF | Atieh | CFX | 4 | February 10, 2007 15:47 |