Solve in Region0 then Region1

ali.m.1 · January 29, 2016, 12:25

Hi

Does anyone know how to alter a solver so that it solves in 2 (or more) stages, i.e region1, then region2?
I'm having trouble defining a region in the .C file. I've tried to copy the way chtMultiRegionFoam does it, but with little success. I'm not sure where it defines the regions in the solver. I can see where it does in the case.

Any help is appreciated!

Ali

marupio · January 29, 2016, 16:51

createRegionProperties.H reads the regionProperties and holds information about the regions. Look at this file and you will see what it does and what class it uses.

CHT solvers create a separate mesh for each region. This is in createFluidMeshes.H. They create fields on each mesh in createFluidFields.H, and they set references before running the solver algorithm in setFluid something or other. Can't remember. The algorithm is run in solveFluid.H I think.

In your case directory, each 'instance' can have a region subdirectory. By instance, I mean 'constant', 'system', or time directories. This is where each region stores its information.

Hope this helps.

ali.m.1 · February 1, 2016, 10:26

Thanks David.

I'll take a look at those files. It's still quite difficult applying those things from the CHT solver to my own one!

Also, I don't think createRegionProperties.H exists.

January 29, 2016, 12:25	Solve in Region0 then Region1	#1
ali.m.1 Member Ali Join Date: Oct 2013 Location: Scotland Posts: 66 Rep Power: 12	Hi Does anyone know how to alter a solver so that it solves in 2 (or more) stages, i.e region1, then region2? I'm having trouble defining a region in the .C file. I've tried to copy the way chtMultiRegionFoam does it, but with little success. I'm not sure where it defines the regions in the solver. I can see where it does in the case. Any help is appreciated! Ali

January 29, 2016, 16:51		#2
marupio Senior Member David Gaden Join Date: Apr 2009 Location: Winnipeg, Canada Posts: 437 Rep Power: 22	createRegionProperties.H reads the regionProperties and holds information about the regions. Look at this file and you will see what it does and what class it uses. CHT solvers create a separate mesh for each region. This is in createFluidMeshes.H. They create fields on each mesh in createFluidFields.H, and they set references before running the solver algorithm in setFluid something or other. Can't remember. The algorithm is run in solveFluid.H I think. In your case directory, each 'instance' can have a region subdirectory. By instance, I mean 'constant', 'system', or time directories. This is where each region stores its information. Hope this helps. __________________ ~~~ Follow me on twitter @DavidGaden

February 1, 2016, 10:26		#3
ali.m.1 Member Ali Join Date: Oct 2013 Location: Scotland Posts: 66 Rep Power: 12	Thanks David. I'll take a look at those files. It's still quite difficult applying those things from the CHT solver to my own one! Also, I don't think createRegionProperties.H exists. Last edited by ali.m.1; February 1, 2016 at 11:32.

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