Adaptive mesh refinement using simpleFOAM

avinashjagdale · March 31, 2014, 01:58

How to implement dynamics adaptive mesh refinement using simpleFOAM.?

vasava · March 31, 2014, 03:57

Can you explain more about your case? It would be easy to point out a solve that might suit your case.

avinashjagdale · March 31, 2014, 04:08

@paritosh
the flow is through a model of turbine stator cooling network . like the one in the link below.
http://3.bp.blogspot.com/-KYC-Nn3g5B...Q/s1600/29.JPG
It is a single inlet ,multiple outlet flow.
It is steady state incompressible turbulent flow using K-epsilon.
In my simulation Pressure is not converging.
I am presently reading about AMR in H.Jasak's phD thesis, and a report about icoDyMFoam.
I am wondering if AMR can be implemented in simpleFOAM as there is no simpleDyMFoam.

olivierG · March 31, 2014, 09:49

hello,

* You can switch your solution to a transient pimpleDyMFoam case, and run for a few (or more) time step, thus doing mesh adaptation, then switch to simpleFoam, keeping the mesh (just modify controlDict, fvSolution, fvScheme), i.e:
1) run with simpleFoam
2) modify system dir, and run with pimpeDyMFoam from latestTime
3) modify again to come back with simpleFoam

* Or modify the solver simpleFoam (not too difficult if you already done this once.)

Regards,
olivier

avinashjagdale · April 1, 2014, 00:39

Thank you olivier.
The first method is really a nice trick .
Will let you know my further progress.

March 31, 2014, 01:58	Adaptive mesh refinement using simpleFOAM	#1
avinashjagdale New Member avinashjagdale Join Date: Feb 2014 Location: pune,India Posts: 26 Rep Power: 12	How to implement dynamics adaptive mesh refinement using simpleFOAM.?

March 31, 2014, 09:49		#4
olivierG Senior Member Olivier Join Date: Jun 2009 Location: France, grenoble Posts: 272 Rep Power: 17	hello, * You can switch your solution to a transient pimpleDyMFoam case, and run for a few (or more) time step, thus doing mesh adaptation, then switch to simpleFoam, keeping the mesh (just modify controlDict, fvSolution, fvScheme), i.e: 1) run with simpleFoam 2) modify system dir, and run with pimpeDyMFoam from latestTime 3) modify again to come back with simpleFoam * Or modify the solver simpleFoam (not too difficult if you already done this once.) Regards, olivier ArathoN, hua1015, arvindpj and 1 others like this.

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March 31, 2014, 03:57		#2
vasava Senior Member Paritosh Vasava Join Date: Oct 2012 Location: Lappeenranta, Finland Posts: 732 Rep Power: 22	Can you explain more about your case? It would be easy to point out a solve that might suit your case.

March 31, 2014, 04:08		#3
avinashjagdale New Member avinashjagdale Join Date: Feb 2014 Location: pune,India Posts: 26 Rep Power: 12	@paritosh the flow is through a model of turbine stator cooling network . like the one in the link below. http://3.bp.blogspot.com/-KYC-Nn3g5B...Q/s1600/29.JPG It is a single inlet ,multiple outlet flow. It is steady state incompressible turbulent flow using K-epsilon. In my simulation Pressure is not converging. I am presently reading about AMR in H.Jasak's phD thesis, and a report about icoDyMFoam. I am wondering if AMR can be implemented in simpleFOAM as there is no simpleDyMFoam.

April 1, 2014, 00:39		#5
avinashjagdale New Member avinashjagdale Join Date: Feb 2014 Location: pune,India Posts: 26 Rep Power: 12	Thank you olivier. The first method is really a nice trick . Will let you know my further progress.