Different results for inlet boundary conditions.

- December 6, 2024 at 7:09 am
  
  venkyvenkatesh374
  Subscriber
  
  Hello All,
  
  I have uploaded two snips case 1 and case 2.,
  
  In case 1 wing is flat and velocity is at 7deg angle., i.e., cartesian x and z components, lift generated is 248N,
  
  In case 2 wing is tilted to 7deg, velocity is normal to boundary, Lift generated is 550N,
  
  I don't know where am making wrong sir., please help me out.
- December 6, 2024 at 8:50 am
  
  abhishek.roy
  Ansys Employee
  
  Lift force is perpendicular to chord. So the first case where wing is flat force on Z axis is lift force. In second case where wing is tilted force on Z axis is not lift.