Ansys Fluent melting/solidification model equations

- January 16, 2023 at 10:51 am
  
  Jada
  Subscriber
  
  Hi,
  I have a few questions regarding the fundamental equations used in the melting/solidification model for phase change materials in ANSYS Fluent.
  
  With reference to the energy and momentum sink equations (17.4-5) and (17.5-1) in release 12.0 of the Ansys Fluent theory guide, how is the fluid velocity term calculated, and where is the value of the mushy zone derived from? I have attached the equations below for reference, and the theory guide can be accesed here. Thanks.
  
  Energy Equation:
  
  Momentum sink equation:
  
  Kind regards,
  Jada
- January 16, 2023 at 12:06 pm
  
  Amine Ben Hadj Ali
  Ansys Employee
  
  The velocity is fixed using that source term into the momentum equation. I recommend using supported Online Help. Release 12 is not supported anymore.
- January 17, 2023 at 1:48 pm
  
  Jada
  Subscriber
  
  Thank you for getting back to me.
  How are the velocity terms in the source term and energy equation coupled? Also, where can I locate the theory guide/supported help for the most latest release?
  Kind regards,
  Jada
- January 17, 2023 at 2:05 pm
  
  Amine Ben Hadj Ali
  Ansys Employee
  
  Check the Solidification and Melting Model in the Theory Guide: you won't miss it.
  To get the (online) help: wherevever you are in Ansys Fluent just Hit F1 then navigate to main Help landing page.
  - January 18, 2023 at 8:51 am
    
    Jada
    Subscriber
    
    Ok, I will try that. Thank you for your help.