reactingFoam with adpative mesh

nwpusunjie · March 25, 2020, 03:58

Hi everyone,
I am new to learn OpenFoam. I want to simulate the combustion process of H2/Air using reactingFoam. Due to the appending of detonation wave, high gridient happened. I used the adaptive mesh in order to distinguish the detonation wave better and added the dynamicMeshDict file into the system files. But it seems that the dynamicMeshDict not be used during the solving process. There are no errors and the results is same as which not used adaptive mesh. I am looking forward to your help. Thanks a lot.

hofbeer · May 29, 2020, 01:31

You need to use reactingDyMFoam for dealing with dynamic mesh.
Also, even if "DyM" is not implemented on some default solvers, you can modify normal solver to "DyM" solver without difficulties.

I recommend you some AMR library, which is quite sophisticated.

Paper:https://www.sciencedirect.com/scienc...52711018301699
git:https://github.com/ElsevierSoftwareX/SOFTX_2018_143

mactone · September 9, 2022, 00:01

Will the reactingDyMFoam work more efficient tha reactingFoam?

I suppose it can run with coarser grid at the start. It shall be easier to setup. Right?

Could you share the dynamicMeshDict?

Thank you.

March 25, 2020, 03:58	reactingFoam with adpative mesh	#1
nwpusunjie New Member Jie Sun Join Date: Feb 2019 Posts: 2 Rep Power: 0	Hi everyone, I am new to learn OpenFoam. I want to simulate the combustion process of H2/Air using reactingFoam. Due to the appending of detonation wave, high gridient happened. I used the adaptive mesh in order to distinguish the detonation wave better and added the dynamicMeshDict file into the system files. But it seems that the dynamicMeshDict not be used during the solving process. There are no errors and the results is same as which not used adaptive mesh. I am looking forward to your help. Thanks a lot.

May 29, 2020, 01:31	Re	#2
hofbeer New Member Dae Young Jun Join Date: Sep 2019 Posts: 1 Rep Power: 0	You need to use reactingDyMFoam for dealing with dynamic mesh. Also, even if "DyM" is not implemented on some default solvers, you can modify normal solver to "DyM" solver without difficulties. I recommend you some AMR library, which is quite sophisticated. Paper:https://www.sciencedirect.com/scienc...52711018301699 git:https://github.com/ElsevierSoftwareX/SOFTX_2018_143 mactone and überschwupper like this.

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September 9, 2022, 00:01		#3
mactone Member mactone hsieh Join Date: Apr 2012 Location: Taiwan Posts: 31 Blog Entries: 1 Rep Power: 14	Will the reactingDyMFoam work more efficient tha reactingFoam? I suppose it can run with coarser grid at the start. It shall be easier to setup. Right? Could you share the dynamicMeshDict? Thank you.