How to simulate ground effect for 2D airfoil

- March 3, 2024 at 7:25 pm
  
  Auguste Pestininkaite
  Subscriber
  
  Hello,
  Could anyone advise how to simulate the ground effect for 2D airfoil? I want to show that the coefficient of lift increases and the coefficient of drag reduces when the distance between the ground and the airfoil decreases, for example, going from 3m above the ground to 1.5m and then 0.5m?
  I have a mesh which looks like this(picture below). Now the distance below the airfoil is 5m, should I just change the geometry and make it, for example, 3m? I have read something about moving wall below the airfoil but I am very new to Ansys and I do not know if it is necessary. Maybe someone could advise how to simulate for the begiiner? Thanks in advance!
- March 4, 2024 at 11:02 am
  
  Rob
  Forum Moderator
  
  If you want to include the ground then, yes, it'll help if you include it in the model! Go through the various courses in Learning and additional tutorials in Help to get an idea of what's needed. In 2024R1 I'd advise Ansys Meshing, and other than inflating the ground and wing don't try and recreate the above mesh: use pave and do it properly.