How does Fluent calculate Cd and Cl?

- April 4, 2023 at 10:37 am
  
  Naresh
  Subscriber
  
  Hi, how does Ansys Fluent determine Cd and Cl?
  
  I read it uses the user specified numbers, what does it do with them and is it correct to say that it doesn't have anything to do with the mesh?
- April 4, 2023 at 12:31 pm
  
  Nikhil Narale
  Ansys Employee
  
  Hello Naresh,
  
  The solver solves for the drag and lift forces (the accuracy of which will depend on the mesh). Then using the Cd and Cl equations, and the user specified numbers, it calculates Cd and Cl coefficients.
- April 4, 2023 at 1:20 pm
  
  Naresh
  Subscriber
  
  Hi Nikhil, that makes more sense, thank you!
  
  how is the coefficient of pressure determined please? In a similar way?

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