Thermal Shell * Baffle In AcuSolve

Junta_20361
Junta_20361 New Altair Community Member
edited December 2020 in Community Q&A

Hello expert,

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

image

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:

image

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

Thank you very much!

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Answers

  • Danielle_21252
    Danielle_21252
    Altair Employee
    edited November 2020

    Hello, 

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

  • Junta_20361
    Junta_20361 New Altair Community Member
    edited November 2020
    Danielle_21252 said:

    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
    dchang
    Altair Employee
    edited December 2020

    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
    Junta_20361 New Altair Community Member
    edited December 2020
    Dongil Chang said:

    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
    dchang
    Altair Employee
    edited December 2020

    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

     

  • Dongil (Steven) Chang, Ph.D._22490
    Dongil (Steven) Chang, Ph.D._22490 New Altair Community Member
    edited December 2020

    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
    Junta_20361 New Altair Community Member
    edited December 2020
    Dongil (Steven) Chang, Ph.D._22490 said:

    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.
    image
    Anyway, thanks you for your great support!

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