|
[Sponsors] |
February 23, 2015, 12:34 |
MRF setup
|
#1 |
New Member
Andreas V.
Join Date: Jul 2014
Posts: 15
Rep Power: 12 |
Hi Folks,
I have a question regarding dynamic parts. I try to simulate the effect of different rotation speeds on particle laden flows. For that I want to rotate a goeometry (here a Rotor called Dynamic) and I think that a MRF is the best (?) for these kinds of problems. Now I have included the MRF setting in snappyHexMesh Code:
refinementSurfaces { Dynamic //3 { // Surface-wise min and max refinement level level (5 6); } Nacelle_simple_lang //4 { // Surface-wise min and max refinement level level (5 6); } refinementCylinder { level (2 2); faceZone MRF; cellZone MRF; cellZoneInside inside; } Code:
MRF { type MRFSource; active true; selectionMode cellZone; cellZone MRF; MRFSourceCoeffs { origin (0 0 0); axis (1 0 0); omega 100; } } Code:
actions ( { name MRF; type cellZoneSet; action new; source zoneToCell; sourceInfo { name MRF; } } ); I also get this message Code:
--> FOAM FATAL ERROR: Cannot find cellZone refinementCylinder Valid cellZones are 1(MRF) From function option::setCellIds() in file fvOptions/fvOption.C at line 158. FOAM exiting One other point is the following: Are the origin coordinates (here in red) the coordinates relative to your rotating frame? MRFSourceCoeffs { origin (0 0 0); All help is welcome. Andreas Last edited by andreas0209@hotmail.com; February 24, 2015 at 05:42. Reason: I forgot a text passage. |
|
August 6, 2015, 10:36 |
|
#2 |
New Member
Join Date: Jul 2014
Posts: 26
Rep Power: 12 |
Hello,
Maybe you have already solved your problem, anyway.... I think the problem is that your ''refinementCylinder'' is not a defined .stl geometry file. That's why it cannot be found. Try to define it among your geometries and maybe it will work. I am having some trouble creating MRF and baffles through SnappyHexMesh as well. I am not really an expert,so if you have solved your problem could you post your SHMDict file please? Thx Cheers! |
|
Tags |
dynamic mesh, mrf, snappyhexmesh 3d |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
MRF solvers give diffenrent results when MRF zone's diameter is different | sharonyue | OpenFOAM Running, Solving & CFD | 10 | May 31, 2022 05:46 |
2D Glass Melt Simulation Setup | marmz | FLUENT | 5 | October 9, 2016 16:25 |
[ICEM] Hexa mesh, curve mesh setup, bunching law | Anorky | ANSYS Meshing & Geometry | 4 | November 12, 2014 01:27 |
Rigid body motion on transient fluent mrf | ghost82 | EnSight | 4 | September 6, 2014 12:24 |
Should an empty MRF zone really induce this much cross-flow? | sylvester | OpenFOAM | 5 | November 18, 2010 04:48 |