Coupled thermal and flow simulation

Coupled thermal and flow simulation – Discovery Live

- April 20, 2022 at 10:41 am
  
  barbara.siegl
  Subscriber
  
  I want to simulate and inverter with an external flow simulation. This part produces heat of 600W, the flow is defined by 16 m/s. I defined the in- and outlet of the air flow, the heat produced by the inverter and the materials. But I am unable to start the simulation, I get the notification "stationary thermal fluid flow, thermal volume body, can not solve". Also there is a note I should use the wraping tool but it doesn't disappear if I use it (the way shown in the help tool) nor can I start the simulation.
  I also tried to create a volume around the part, to apply an internal flow but this didn't work out either.
  
  Maybe I forgot something, but right now I don't know what this may be.
  
  Thanks for the help in advance!
  
  Edit: The purpose of this simulation is to ensure a sufficient heat transfer by the air flow to not exceed a certain temperature of the inverter. This should be the first step to evaluate which kind of cooling is necessary. The mounting of the inverter can be ignored.
- April 20, 2022 at 10:56 am
  
  Devendra Badgujar
  Ansys Employee
  
  Hi Barbara Siegl
  
  Please can you share the setup file with me to understand the problem better. I will have to try it on my end to see what the issue could be.
  
  If you want, I can share a secure transfer link for you to upload the files.
  
  Regards.
  - April 20, 2022 at 11:31 am
    
    barbara.siegl
    Subscriber
    
    🛈 This post originally contained file attachments which have been removed in compliance with the updated Ansys Learning Forum Terms & Conditions
    
    Devendra Badgujar Sure, I attached the file below. Thanks a lot!
  - April 20, 2022 at 12:16 pm
    
    Devendra Badgujar
    Ansys Employee
    
    Barbara Siegl
    
    Thanks for sharing the file. I will check and get back to you.
- April 20, 2022 at 1:39 pm
  
  Devendra Badgujar
  Ansys Employee
  
  🛈 This post originally contained file attachments which have been removed in compliance with the updated Ansys Learning Forum Terms & Conditions
  
  Hi Barbara Siegl
  
  Please try creating the fluid volume using Enclosure Tab from the Prepare options instead of creating it automatically using External Flow tool which at the moment is not supported for Fluid Solid heat transfer.
  
  I was able to run the simulation after creating the fluid volume, please check the attached file for your reference. I have just suppressed the previously defined conditions on the auto extracted volume.
  - April 20, 2022 at 3:47 pm
    
    barbara.siegl
    Subscriber
    
    Hi Devendra Badgujar
    
    Thank you so much!! This is exactly what I wanted it to look like!

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