OpenFOAM: chtMultiRegion - multi region case setup

[@BobBeatski71]

Very informative. Thank you for uploading.

[@AnandDoss]

How to add a constant heat source in watt ?

[@rahuldate9773]

Hello sir,
I have a circular fin heat exchange case.
Which solver should I used.

[@1jokboy1]

I'm wondering if you have an example of how to set up an axisymmetrical case of chtMultiRegionFoam? I want to try to simulate the cool-down time of an insulated pipe in water. The insulation is a little complex, so it's not just a simple 'layer thickness'. I am able to share with you what I have done, but I am having lots of trouble getting the dictionaries set-up and perhaps the 'changeDictDict' approach is actually what I need to assist.

[@martinsaravia]

Very helpful foamDude ! Thanks!

[@ing.nicola1706]

Hi, is possible in OpenFoam Calculate HeatFlux on a surface ?

[@akhaleshsharma957]

HI sir
I want to do it for simple case of flow across a sphere with heat generation in sphere. I am creating my mesh in gambit and reading that mesh in openfoam. I am creating toposet with giving sphere solid and rest as fluid by invert in toposet. But when i am running split mesh it shows error that:
Cell 0 with cell center (0.244027 -0.0982378 0.0982372) is multiple zones. This is not allowed.
It is in zone Fluid and in zone fluid

[@sajidashamsher8229]

Boundary Conditions and controlDict setup...can you provide

[@ujjwalchetan6112]

Thanks brother, it worked for me...

[@MatthewKleinTheThird]

Very helpful video for me!

[@jebingeorge9698]

thanks for uploading this video

[@abinfrancis26]

hey you doing Mtech project?

[@jebingeorge9698]

@@abinfrancis26 no doing internship

[@abinfrancis26]

Where, what is the topic ?

[@cristinaboscariol533]

Hi and thanks a lot for the tutorials!
How could I run a similar simulation on Openfoam 6?

[@robertjohansson7682]

since Openfoam 6 doesnt have the chtSimpleFOAM anylonger you need to use the PIMLE version (chtMultiRegionFoam) with ddt scheem in fvSol as steadyState.
you can take the v5 SIMPLE version and change SPMLE to PIMLE and add the *Final part by using regex. ex "U.*" instead of just U
ex all the fvsceme should have steadyState
ddtSchemes
{
default steadyState;
}
solvers
{
"(U|h|k|epsilon).*"

[@arthurkelly7852]

I tried to run it using the command "./Allrun", but it didn´t let me. Error was "bash: ./Allrun: Permission denied".
Do you have a solution for this? I used OpenFOAM v5.0

[@ujjwalchetan6112]

in the terminal, write , then execute . It will work...

[@arthurkelly7852]

@@ujjwalchetan6112 thank you, I found the fix but didn't remember I'd commented on this haha. :)

[@ujjwalchetan6112]

@@arthurkelly7852 it's okay, bro...Welcome :)

[@francoromero836]

thanks a lot!