reference values – for Coefficient of drag and Drag

- February 22, 2019 at 8:31 am
  
  VSK1989
  Subscriber
  
  Dear Team Ansys ,
  
  Greetings .
  
  I am unable to obtain good solution in Fluent due to reference values . Not sure about how to calculate for the following geometry.
  
  Thanks and regards ,
  
  v shravan koundinya
- February 22, 2019 at 9:24 am
  
  Rob
  Forum Moderator
  
  The result is correct: report the forces. Lift & drag and pressure coefficients are dependent on the reference values so need to be calculated for the model.
- February 22, 2019 at 9:35 am
  
  VSK1989
  Subscriber
  
  Hi ,
  
  I am getting drag as 10 newtons and Drag coefficient as 1.55. But for 3D model drag is only 1.98 newtons . Please let me know what values to be taken.
- February 22, 2019 at 11:43 am
  
  Rob
  Forum Moderator
  
  2d assumes the domain is 1m thick; 3d and you have a defined thickness. If you account for the 2d "thickness" how does it compare?