|August 15, 2013, 03:22||
faceZone or cellZone for MRF
Join Date: Aug 2013
Posts: 50Rep Power: 4
i read in MRFZone.H that cellZone will be defined as MRFZone and faceZone can also optionally be assigned as MRFZone.
my question is when is faceZone is needed as MRFZone?
in my studies of radial blower simulation, cellZone and faceZone are generated within sHM using STL (cylinder for my MRF Zone)
sofar i have set cellZone for the MRFZone in fvOptionsDict and the simulation ran okay sofar.
in my case, should i set faceZone as well for the MRFZone in fvOptionDict ?
when one needs to use the faceZone? just wondering why faceZone is also given in sHMDict
Adding patches for surface regions ---------------------------------- Patch Type Region ----- ---- ------ fan: 5 wall fan_rotor-layersides 6 wall fan_rotor-mrf-02 7 wall fan_casing-schwarz-03 8 wall fan_rotor-mrf-layer-02 9 wall fan_rotor-mrf-01 10 wall fan_casing 11 wall fan_plane 12 wall fan_inlet 13 wall fan_outlet 14 wall fan_channel 15 wall fan_casing-outter 16 wall fan_casing-mrf 17 wall fan_casing-02 18 wall fan_rotor--mrf-layer-01 mrfDomain: 19 wall mrfDomain_frameboarder-interior 20 wall mrfDomain_frameboarder-interior_slave
am i correct??
|April 30, 2015, 03:33||
Join Date: Mar 2009
Posts: 113Rep Power: 8
Any news about this topic?
I am trying to do the same and I have the doubts if it is needed to make a faceZone or not. My mesh has two regions. I have generated the cellZone with one of the regions that will be the one rotating. AMI patches will be non-rotating Patches but what about the wall-surface located inside the rotating region?
I am using OF2.3.x. Now in the fvOptions dict you have you select between cellZone selection and faceZone selection.... I think
|April 30, 2015, 12:06||
Join Date: Mar 2009
Location: Lisbon, Portugal
Blog Entries: 34Rep Power: 87
Quick answer: Nash made a similar question here: dynamic Mesh is faster than MRF???? - post 11 and in the posts after that I gave some answers.
And I know I wrote somewhere that faceZones aren't needed for MRF, but I can't find where I wrote it... anyway, faceZones are useful if you need to do additional calculations on the interface between the MRF and the remaining mesh, for example, for checking the mass flow going through it, pressure levels and so on.
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