Difference between superficial and physical velocity formulation in porous medium

- October 10, 2019 at 10:05 pm
  
  ketakijoshi
  Subscriber
  
  Hello,
  
  I am doing simulations with porous medium. I am not able to understand difference between superficial and physical velocity formulations. Is there any document or material that can explain difference between these two formulations.
  
  Thank you.
- October 11, 2019 at 8:58 am
  
  DrAmine
  Ansys Employee
  
  Superficial: is pretty simple and old approach as all loss correlations are based on that. Superficial velocity is conserved over the porous zone. With that approach you won't see any jump in the velocity.
  
  Physical: You still to provide inertial and viscous losses in terms of superficial velocities but now you will see a velocity increase across the porous zone.
  
  Please have a look into the Fluent User's Guide. It describes both approaches.
- October 11, 2019 at 2:05 pm
  
  ketakijoshi
  Subscriber
  
  Hi Amine,
  
  Thank you for response. I found Fluent user guide 2013 online. Is there any later version available online. I am using FLUENT 19.2 for simulations.
- October 11, 2019 at 4:01 pm
  
  DrAmine
  Ansys Employee
  
  Whereever you are in Fluent but F1.