Thermal Shell * Baffle In AcuSolve

Junta_20361

Hello expert,

I'm trying to use HW CFD & AcuSolve to simulate some kind of tube & shell heat exchanger.
Attached is my model.

Since the structure in my model (tube, shell, fin) is very thin (2mm), so i don't prefer to use solid mesh for them.

I tried to use Thermal shell to define those parts.
However, after complete the setup, i tried to run the solver but it showed below errors:

Could you help check my model and give me some advices? or please help me modify the correct BCs.

Thank you very much!

Community-Pasted-Attachment-1604997661726.png

test.hm

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HyperMesh CFD

v2020.1

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Danielle_21252

Hello,

Our team is looking into your question and will respond as quickly as possible. Thanks for using the Community.

Junta_20361

Hello,

Our team is looking into your question and will respond as quickly as possible. Thanks for using the Community.

hi Danielle,

Thanks for your response.

I'll wait for your support.

dchang

Hi Junta,

Sorry for the late reply,

Please remove thin solids for Tube and Shell. Once you do, it should be okay. You need to keep Baffles for Fins because they are internal surfaces.

I hope this answers to your question.

Thanks,

Steven

Junta_20361

Hi Junta,

Sorry for the late reply,

Please remove thin solids for Tube and Shell. Once you do, it should be okay. You need to keep Baffles for Fins because they are internal surfaces.

I hope this answers to your question.

Thanks,

Steven

Hello Dongil,

Thanks a lot for your reply.

Removing thin solids for tube & shell will not suitable for my analysis.

I want to do a thermal simulation, so it's necessary to include the thickness/material of those surface.

Do you have any idea? Solid meshing for this thin parts seems not practical.

Thanks!

dchang

Okay you need thin solid to emulate the solid thickness.

After making some corrections to the model (thermal flow removal, initial condition, BCs), I was able to run your case without acuPrep error. Please see details by checking out the attachment. Note: hm doesn't contain the mesh due to file size limitation.

Steven

testNoMesh.hm

Dongil (Steven) Chang, Ph.D._22490

Hi Junta,

I was wondering if you had a chance to review the model I uploaded earlier. Let us know if your concerns or issues have been addressed.

Thanks,

Steven

Junta_20361

Hi Junta,

I was wondering if you had a chance to review the model I uploaded earlier. Let us know if your concerns or issues have been addressed.

Thanks,

Steven

Hi Dongil,
Sorry for my late response.
I have checked your model. It can run now.
However, i see that the baffles are no longer assigned with thin solids
>> so this seems not fits my desired simulation since the heat will not transfers through the baffles.

Anyway, thanks you for your great support!