Drag calculation through CFD simulation of 3d airfoil under water

- March 11, 2023 at 7:33 pm
  
  Afzal Iqbal
  Subscriber
  
  I have build a NACA foil 0015 with a span of 8cm and conducted my flow simulation under k-omega SST model. The flow speed is 0.5m/s inside water. The boundry conditions have been set using http://ichrome.com/blogs/archives/342 and tubulent viscosity ratio to 10
  The scaled reodual convereged
  But the drag graph is absurd. Giving -17N drag force at the end. Furthermore in post processing when I used function calculator to get the force in x-direction for hydrofoil (drag) I got 0.089N as my result. Can anyone point out the error/ Thanks.
- March 13, 2023 at 6:56 am
  
  DrAmine
  Ansys Employee
  
  Can you add the screenshots behind your drag report?
- March 14, 2023 at 2:25 pm
  
  Federico Alzamora Previtali
  Subscriber
  
  How did you define the drag in your report?

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