Conjugate Heat Transfer in OpenFOAM | Basic | chtMultiRegionFoam

This tutorial video is on how to setup a case for conjugate heat transfer problem in OpenFOAM. Also how we can add a volumetric heat source and how to to post-process some data while running the simulation like, maximum and average temperature for each region.
Code file: drive.google.com/file/d/1Digw...
Graphical Application Tutorial: • Enable Graphical Appli...
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#openfoam​ #paraview​ #cfd​ #CHT #ConjugateHeatTransfer #chtMultiRegionFoam

[@sonumaurya9234]

very helpful for multi region case ....Thank you sir for step by step tutorial

[@laidmessaoudi5335]

Very good step-by-step tutorial. Thanks for sharing your experience.

[@fulgencedione4775]

Interesting tutorial! Thank you very much for sharing this step-by-step! Much appreciated dear

[@agustinbonaldo4890]

awesome tutorial, mate. Very helpful! regards from Argentina.

[@mnm1127]

The video you have made on cht solver is excellent and very detailed. Thank you very much. I had a lot of doubts before, but now I have 90% of them cleared up.

[@alanmcintyre9296]

Thank you for walking through this and showing the whole process! This is the best video I've seen so far on setting up a case from the start.

[@tukkuezgi]

I agree!

[@krishkrishna7481]

This video brought light onto many of my doubts.
It would have been much better if you could split the video into two parts and explained some parts of the code more clearly.

[@BobBeatski71]

👍 very good.

[@himanshubanait9166]

Excellent ✨✨🎉🎉

[@fundamentalsofmechanicalen2168]

Good work

[@volkanatar4232]

Thanks for the tutorial. How can you adjust the line strengths of the generated graph by the foamMonitor function?

[@shubhanshurai3323]

Thanks for providing such an amazing organized content.
Kindly also make video on importing mesh from ansys to OpenFOAM for conjugate heat transfer problem.

[@DDFluids]

Sure, will cover that in 2nd tutorial with slight complex geometry.

[@swchoi3755]

@@DDFluids I also look for the case importing mesh from Ansys for CHT problem.

[@DDFluids]

For mesh import, you just need to replace "blockMesh" command with your conversion command. Other procedure will remain same.

[@rahuldate9773]

Geart work
Add more videos on openfoam

[@DDFluids]

Sure. Thanks!

[@abbas.operations]

Thanks

[@MostafaTawfeek--]

Awesome tutorial , thank you sir . i followed you and i got the same temperature result on paraview but there is nothing for velocity. i notice that the fluid solver is only calculating Uy every time step but for you it was Ux and Uy

[@DDFluids]

Check your boundary conditions. Especially in the X-direction. If it is empty, change it to patch.

[@pandavnilesh4755]

👍

[@nagendrakumarchaurasia5242]

Well done bro....it will help a lot...... can you please make the telegram channel interactive so that learners can ask the problems? thank you

[@DDFluids]

You can join group. Where people discuss their issues.

[@nagendrakumarchaurasia5242]

@@DDFluids ohh thanks

[@user-oj9mm9qs3z]

Some things to note:
For OpenFOAM 11 users having issues:
1. Add "sourceInfo" without quotes above {set c0;} in topotSetDict
2. Change action subtract -> action delete in topoSetDict

[@jacks.554]

Hello, I am inclined to believe that there is an error on the RHS of Equation (2). It should be T instead of U. Anyway, I found your video useful and well-prepared! Thanks!

[@mactone2]

Nice tutorial. May I ask one question? Does it need to use chtMultiRegionFoam to have wall heat transfer or this foam is used to specifically on thick wall and the heat transfer inside the wall is of interest?

[@phani8482]

hey this flow seems to be laminar will this work with multi region foam? because i think multi region foam is for turbulent. correct me if i am wrong

[@muhammadfaridkhandaq4379]

Can chtmultiregiongfoam case run using chtMultiregionSimpleFoam without any changing?

[@rebecacabral4037]

Great Tutorial! I'm using the 10th version of OpenFOAM to do the simulation and and having this error:
FOAM FATAL ERROR:
Field none not found in database
From function Foam::tmp Foam::functionObjects::fieldValues::volFieldValue::getFieldValues(const Foam::word&) const [with type = double]
in file fieldValue/volFieldValue/volFieldValueTemplates.C at line 62.
Does this have something to do with the version I'm using or does it have to do with something I messed up?

[@ghulamabrar]

Me too

[@nucciasousa8080]

Is there any difference with Openfoam 2306?

[@8623farzad]

Hello thanks for the tutorial. I am getting an error I can't see what the resolution is:
--> FOAM FATAL IO ERROR:
Unknown transport type constIso
Supported transport types:
5
(
constIsoSolid
polynomialSolid
exponentialSolid
constAnisoSolid
tabulatedSolid
)
file: /opt/openfoam11/etc/codeTemplates/dynamicCode/solidThermo from line 17 to line 64.

[@dimitrissakellaris9657]

instead of constlso type constlsoSolid, as it is mentioned in the 5 options below.

[@hunghang7707]

Dear Sir!
I am a new beginner! I have tried following your tutorial but i got a error as:
OAM FATAL IO ERROR:
all is not in enumeration:
3
(
faceZone
patch
sampledSurface
)
file: /home/hung/OpenFOAM/hung-9/run/heatedDuct/system/controlDict/functions/volAvgInterface/volAvgInterface/regionType at line 8.
Please explain help me to fix this!
I am using openfoam9
Thank you very much!

[@DDFluids]

Probably the new version has some change in it. I haven't looked at it, but I will do and let you know.

[@dakshadhikari4817]

I am trying to import a mesh from FLUENT meshing and run a similar case to this. I am getting the error "Cannot find file "points" in directory "fluid/polyMesh" in times "0" chtmultiregionfoam"
Any reccomendations?

[@krishkrishna7481]

Hello Daksh,
Did you run BlockMesh before running chtmultiregionfoam ?

[@bouncingquarks6037]

Did you solve this error? I am getting the same error.

[@dimitrissakellaris9657]

@@bouncingquarks6037 check in the constant directory for a file called region1 probably(in my case that was the name), enter it and youll find the polyMesh youre missing, copy it into the fluid directory and youre good to go.

[@shivakarthikeya137]

Good Evening Sir, While running the simulation, I came across this error, Sir " --> FOAM FATAL IO ERROR: (openfoam-2012)
Expected true/false, on/off... found true:
From Foam::Istream& Foam::operator>>(Foam::Istream&, Foam::Switch&)
in file primitives/bools/Switch/Switch.C at line 358.
FOAM exiting
Could you please tell me how to navigate to the error location? Thank you.

[@DDFluids]

Check volAvg files and fvOption file. Somewhere you might have missed a semicolon or true/false word.

[@shivakarthikeya137]

@@DDFluids Issue Resolved, Sir. Thank you. The tutorial is great and there's lot to learn from it.

[@DDFluids]

Share with your connections.

[@syednohsyedabubakar7109]

Thank you for the nice video...
I have tried to follow the steps but I am stuck with an error for fvOptions scalarSemiImplicitSource... OpenFoam says
"----> FOAM FATAL ERROR:
Unknown Model type scalarSemiImplicitSource"
I am using OpenFoam version 8.....
Can you help me with this error?
thank you....

[@DDFluids]

Here is the source code link for version 8: cpp.openfoam.org/v8/semiImplicitSource_8H_source.html

[@pkumarutube]

@@DDFluids which version of OF are you using?

[@DDFluids]

To record these tutorials, I used ESI based v2012.

[@joycesouzaviana6471]

--> FOAM FATAL ERROR:
subtract not found in table. Valid entries:
8
(
clear
invert
remove
list
subset
new
delete
add
)
From function const T& Foam::HashTable::operator[](const Key&) const [with T = unsigned int; Key = Foam::word; Hash = Foam::string::hash]
in file /home/ubuntu/OpenFOAM/OpenFOAM-10/src/OpenFOAM/lnInclude/HashTableI.H at line 126.
FOAM exiting

[@hyvaihminen]

subtract action dont work v11 and you need to write delete instead