Difference using MRFProperties or DynamicMeshDict

Carlo_P · August 1, 2019, 06:11

Hey guys,
I would to understand the difference is uisng MRFPRoperties or DynamicMeshDict in order to simulate a rotating pump.

In some tutorial the MRFProperties file is used, insted of other that use DynamicMeshDict.

I'd like to use CFMesh for meshing and apply the rotaitng zone using topoSetDict, with simpleFoam solver

Which way is the best one?
Thanks a lot,
Carlo

Krao · August 5, 2019, 05:48

Hi Carlo,

dynamicMeshDict is required for the transient dynamic simulation(propeller turorial in pimpleFoam). It demands huge computational efforts. MRF SimpleFoam is a reasonable alternative to transient dynamic simulation.

As of now I am simulating my propeller using simpleFoam with MRF and I am also defining the rotating regions using topoSetDict. So simpleFoam with MRF would be the best option out of two.

Regards,
Krao

Carlo_P · August 6, 2019, 06:45

Thanks a lot for the explanation!
Cheers,
Carlo

August 1, 2019, 06:11	Difference using MRFProperties or DynamicMeshDict	#1
Carlo_P Senior Member Carlo_P Join Date: May 2019 Location: Italy Posts: 176 Rep Power: 8	Hey guys, I would to understand the difference is uisng MRFPRoperties or DynamicMeshDict in order to simulate a rotating pump. In some tutorial the MRFProperties file is used, insted of other that use DynamicMeshDict. I'd like to use CFMesh for meshing and apply the rotaitng zone using topoSetDict, with simpleFoam solver Which way is the best one? Thanks a lot, Carlo

August 6, 2019, 06:45		#3
Carlo_P Senior Member Carlo_P Join Date: May 2019 Location: Italy Posts: 176 Rep Power: 8	Thanks a lot for the explanation! Cheers, Carlo Krao likes this.

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August 5, 2019, 05:48		#2
Krao Senior Member Kmeti Rao Join Date: May 2019 Posts: 145 Rep Power: 8	Hi Carlo, dynamicMeshDict is required for the transient dynamic simulation(propeller turorial in pimpleFoam). It demands huge computational efforts. MRF SimpleFoam is a reasonable alternative to transient dynamic simulation. As of now I am simulating my propeller using simpleFoam with MRF and I am also defining the rotating regions using topoSetDict. So simpleFoam with MRF would be the best option out of two. Regards, Krao