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Best answer by cfdgeek

Hi 

 

We have a tutorial case of natural convection. https://support.ptc.com/help/creo/creo_pma/r9.0/italian/index.html#page/tutorials_pma/NaturalConvection.html

 

For import/export BCs, what do you want to import/export? Thanks.

 

 

1 reply

C
cfdgeek13-AquamarineAnswer
13-Aquamarine
April 7, 2023

Hi 

 

We have a tutorial case of natural convection. https://support.ptc.com/help/creo/creo_pma/r9.0/italian/index.html#page/tutorials_pma/NaturalConvection.html

 

For import/export BCs, what do you want to import/export? Thanks.

 

 

    S
    SZdore13-AquamarineAuthor
    13-Aquamarine
    April 11, 2023

    Thank you very much for the information you provided. What I need is the natural heat dissipation when pcb works!  Thank you again！ 

    Thermal__Simulation_页面_4.jpg

     

    C
    cfdgeek13-Aquamarine
    13-Aquamarine
    April 14, 2023

    Hi yes, that tutorial cases explains what needs to do for a heat transfer case with natural convection. The briefly summary is here,

    1. add heat module

    2. change fluid density as ideal gas law

    3. turn on gravity and set gravity direction

    4. use mesh location to both(internal+external)

    5. specify pressure intial value and also BC values due to gravity change p = rho * g * height

    6. run a steady state or transient run

     

    Please contact your support engineer if you need further assistant. 

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