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conjugateHeatFoam: Should solid and fluid have the same mesh at the coupled boundary?

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Old   September 15, 2009, 23:12
Default conjugateHeatFoam: Should solid and fluid have the same mesh at the coupled boundary?
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Jitao Liu
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Hi all,

Should the solid region and fluid region have the same mesh grid at the coupled boundary when using the conjugateHeatFoam solver?

Will it work if I define the coupled boundary for solid and fluid as following:

For solid:

cavityTop
{
type regionCouple;
nFaces 50;
startFace 8890;

shadowRegion region0;
shadowPatch polymerMeltTop;
attached on;
}


For fluid:

polymerMeltTop
{
type regionCouple;
nFaces 100;
startFace 3920;

shadowRegion solid;
shadowPatch cavityTop;
attached on;
}


Thanks in advance.

Regards,
Jitao

Last edited by awacs; September 16, 2009 at 01:10.
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Old   September 16, 2009, 08:08
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Petri Sulasalmi
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Hi,

is conjugateHeatFOAM same as chtMultiRegionFoam?

Regards,

Petri
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Old   September 16, 2009, 14:42
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Anton Kidess
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Quote:
Originally Posted by PetSul View Post
Hi,

is conjugateHeatFOAM same as chtMultiRegionFoam?

Regards,

Petri
No. chtMRF does coupling by copying values at the domain boundary, while conjugateHF assembles a large matrix for all domains and solves it as one.
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Old   September 17, 2009, 02:14
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Quote:
Originally Posted by akidess View Post
No. chtMRF does coupling by copying values at the domain boundary, while conjugateHF assembles a large matrix for all domains and solves it as one.

I have a simple case with hot fluid region, with zero fluid velocity, and cold solid region. I'd like simulate heat transfer between the regions. Which one of these solvers would you recommend?

Regards,
Petri
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Old   September 17, 2009, 06:19
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Hi Jitao
It seems they did an interpolation at the coupled interface, so you don't have to set the same mesh.

Junwei
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Old   September 17, 2009, 15:13
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Originally Posted by PetSul View Post
I have a simple case with hot fluid region, with zero fluid velocity, and cold solid region. I'd like simulate heat transfer between the regions. Which one of these solvers would you recommend?

Regards,
Petri
chtMRF should work just fine and is part of the standard OpenFOAM package.
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Old   September 22, 2009, 23:58
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Quote:
Originally Posted by su_junwei View Post
Hi Jitao
It seems they did an interpolation at the coupled interface, so you don't have to set the same mesh.

Junwei
Hi Junwei,

Thanks for your kind reply to my post above. I will try it out.

Best wishes,
Jitao
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