CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

increasing mass using DyMesh and BC movingWallVelocity at twoPhaseEulerFoam

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

LinkBack Thread Tools Search this Thread Display Modes
Old   July 16, 2015, 03:04
Default increasing mass using DyMesh and BC movingWallVelocity at twoPhaseEulerFoam
New Member
Join Date: Apr 2014
Posts: 19
Rep Power: 12
Polli is on a distinguished road
Dear all,

i modified the solver of the twoPhaseEulerFoam for a dynamic mesh in openfoam extend 3.1. to simulate a granular flow in an dynamic mesh. I use the mesh of the movingCone - case with a oszillating laplacian mesh motion. The drag phase alpha in on the bottom so that it will be transported by the moving cone. The granular flow works good but there is a problem in the mass conservation. Using at velocity field Ua and Ub the BC fixedValue = (0 0 0) the flow field is wrong, clearly because the BC is wrong but the mass conservation is ok, using the the BC movingWallVelocity the flow field is perfect but the alpha value increases, so the mass in the system getting more and more. At alpha i used the BC zeroGradient. This should be a problem of the BC movingWallVelocity. When i checked the flux phia and phib it is also not zero at the BC, but regarding to some articles the flux should be zero.
So my question, does anybody know what the problem could be?
Polli is offline   Reply With Quote


mass conservation, movingwallvelocity, twophaseeulerfoam

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 06:53.