inlet alpha angle

  • Last Post 21 March 2019
  • Topic Is Solved
veera posted this 18 March 2019


 i am simulating gust velocity to the supersonic inlet , now i need to give gust effect that means alpha 30 degree , how i can give in the ansys fluent,  help me guys

Order By: Standard | Newest | Votes
abenhadj posted this 18 March 2019

Use cartesian components to prescribe the angle of inflow.

Best regards, Amine

  • Liked by
  • veera
veera posted this 19 March 2019

thank u for your reply , 

 actually you are telling that marked only wright , but everything in m only (x,y,z) , how i can give that angle 

suppose i am choosing cylindrical one (radial, axial, tangential) , in that three field where i have to give angle (my flow direction is x direction), and moreover what is local cylindrical coordinates

kkanade posted this 19 March 2019

check this for giving inputs. 


  • Liked by
  • veera
veera posted this 19 March 2019

yah thank you for your reply , i am understand , if there is no way for directly we can give the angle ? if no means , x is always cos component ?

and y is always sin component ?

actually my problem is 3d so what about z?


rwoolhou posted this 19 March 2019

There's not an angle available, you need to supply the vector. Are you modelling half of the domain or the whole 360 rotation? If it's the former think about which of y or z should represent the gust angle.  

veera posted this 20 March 2019

it is half of the domain , as my my problem i can give z=0 , x= cos 30 , y = sin 30 ?

rwoolhou posted this 20 March 2019

Not unless the flow comes in from both sides: it's a symmetry plane?  Set components in x and z, I'll leave you to check the trigonometry out. 

veera posted this 21 March 2019

thank you for your answer