Turbulent compressible solver rhoTurbFoam with dynamic moving mesh

eno · October 27, 2008, 17:32

Hi,
I modified rhoTurbFoam to use dynamic mesh (like icoDyMFoam). By referring to coldEngineFoam, the modification was pretty straightforward. I named it rhoDyMTrubFoam and successfully compiled it under cygwin/OpenFoam-1.4.
To verify the code, I run a cavity problem - but the lid is moving inward sinusoidally (like a piston) rather than sliding.
When using paraFoam to view the results, the velocity field makes sense to me. But the pressure and density are constant like they are not properly solved. The run time info shows rho is always zero. what can be the problem?

deepsterblue · October 27, 2008, 21:12

Sounds interesting. Could you post a few images?

eno · October 28, 2008, 08:59

Sandeep,
I have not find a way to upload images yet. All i can tell is the mesh motion looks alright - it gets compressed. But the density is not solved.

eno · October 28, 2008, 09:29

The pressure and density are OK just because they are uniform and ParaView does not rescale automatically for each frame.

gooya_mehdy · December 12, 2011, 03:38

Hi eno
I know it's many time later but could you please tell how you used dynamic mesh in a turbulent solver?
I use OF1.6, I just want to know is it possible and how?

thank you very much.

October 27, 2008, 17:32	Hi, I modified rhoTurbFoam to	#1
eno New Member Sean Bian Join Date: Mar 2009 Posts: 19 Rep Power: 17	Hi, I modified rhoTurbFoam to use dynamic mesh (like icoDyMFoam). By referring to coldEngineFoam, the modification was pretty straightforward. I named it rhoDyMTrubFoam and successfully compiled it under cygwin/OpenFoam-1.4. To verify the code, I run a cavity problem - but the lid is moving inward sinusoidally (like a piston) rather than sliding. When using paraFoam to view the results, the velocity field makes sense to me. But the pressure and density are constant like they are not properly solved. The run time info shows rho is always zero. what can be the problem?

October 27, 2008, 21:12	Sounds interesting. Could you	#2
deepsterblue Senior Member Sandeep Menon Join Date: Mar 2009 Location: Amherst, MA Posts: 403 Rep Power: 25	Sounds interesting. Could you post a few images? __________________ Sandeep Menon University of Massachusetts Amherst https://github.com/smenon

October 28, 2008, 08:59	Sandeep, I have not find a wa	#3
eno New Member Sean Bian Join Date: Mar 2009 Posts: 19 Rep Power: 17	Sandeep, I have not find a way to upload images yet. All i can tell is the mesh motion looks alright - it gets compressed. But the density is not solved.

October 28, 2008, 09:29	The pressure and density are O	#4
eno New Member Sean Bian Join Date: Mar 2009 Posts: 19 Rep Power: 17	The pressure and density are OK just because they are uniform and ParaView does not rescale automatically for each frame.

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December 12, 2011, 03:38		#5
gooya_mehdy New Member mehdy Join Date: May 2011 Posts: 5 Rep Power: 14	Hi eno I know it's many time later but could you please tell how you used dynamic mesh in a turbulent solver? I use OF1.6, I just want to know is it possible and how? thank you very much.