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Hello guys, I am trying to study the flow around NACA0012 airfoil at zero angle of attack. However, when I try to refine the octree parameter around the airfoil and generate the mesh, every single time I get different values for Lift force! Any reasons??

Hello guys, I am trying to study the flow around NACA0012 airfoil at zero angle of attack. However, when I try to refine the octree parameter around the airfoil and generate the mesh, every single time I get different values for Lift force! Any reasons??
Parents
  • Hello Chuel,
     
    It worked! I put wrong BCs. on top and bottom of the domain.
    Is there a way to get the value of the drag only? I need to understand why the value here in X is by negative. The lift value is fine for me, however the value in X is suspicious for me. Does it relate to the kind of surface forces I need to compute during the setup?
    Capture2
Reply
  • Hello Chuel,
     
    It worked! I put wrong BCs. on top and bottom of the domain.
    Is there a way to get the value of the drag only? I need to understand why the value here in X is by negative. The lift value is fine for me, however the value in X is suspicious for me. Does it relate to the kind of surface forces I need to compute during the setup?
    Capture2
Children
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