Creating CellZone for MRF

altinel · July 26, 2018, 09:49

Dear OpenFoamers,

I am new to OpenFOAM and have a question regarding MRF (Multiple Reference Frame) in a simpleFoam. As is known, the rotating zone should be specified by cellZone to apply the MRF. So my question is, should the cellZone be created for a volume or just a patch?

Thanks in advance.

Altinel

Steven_Wu · July 27, 2018, 05:45

Hi, Altinel

I'm a new guy learning OF to simulate centrifugal pump which is very similar to your case.

but I don't know does OF have MRF model to set the interface between rotor and stator?

student666 · July 27, 2018, 23:44

Quote:

So my question is, should the cellZone be created for a volume or just a patch?

Roughly speaking:

A cellZone is a "zone of cells", so...

Quote:

but I don't know does OF have MRF model to set the interface between rotor and stator?

Code:

cyclicAMI

I think that if you have a perfect match and a stationary case, you can define

Code:

cyclic

as well.

Others are:

Code:

slidingInterface
 mixingPlane

but I never used them, you should ask for help to some expert on turbo machinery for details about the usage of these BC.

Have a look here:
http://sourceflux.de/blog/generate-r...snappyhexmesh/
My first English document on CFD for rotating machinery using OpenFOAM

July 26, 2018, 09:49	Creating CellZone for MRF	#1
altinel New Member Berk Join Date: Jul 2018 Location: Germany Posts: 8 Rep Power: 8	Dear OpenFoamers, I am new to OpenFOAM and have a question regarding MRF (Multiple Reference Frame) in a simpleFoam. As is known, the rotating zone should be specified by cellZone to apply the MRF. So my question is, should the cellZone be created for a volume or just a patch? Thanks in advance. Altinel

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July 27, 2018, 05:45		#2
Steven_Wu New Member Steven Wu Join Date: Dec 2015 Posts: 1 Rep Power: 0	Hi, Altinel I'm a new guy learning OF to simulate centrifugal pump which is very similar to your case. but I don't know does OF have MRF model to set the interface between rotor and stator?