[Shreyashv]

Hello,
I am doing a CFD of a turbofan blade, where im analyzing a single blade of 20. I have given inlet and outlet static pressure of 1 bar to both. Still i get a notice of a wall being placed for more than 50% of the inlet and outlet area to prevent flow leak into the domain causing an area of re-circulation.

i tried playing with the boundary conditions to changes the pressure but none work.

can anyone help me in this?

thank you

[Opaque]

Originally Posted by Shreyashv

Hello,
I am doing a CFD of a turbofan blade, where im analyzing a single blade of 20. I have given inlet and outlet static pressure of 1 bar to both. Still i get a notice of a wall being placed for more than 50% of the inlet and outlet area to prevent flow leak into the domain causing an area of re-circulation.

i tried playing with the boundary conditions to changes the pressure but none work.

can anyone help me in this?

thank you

Do you understand how to choose boundary conditions for fluid flow?

You cannot set a model with static pressures on both inlet and outlet. It would be ill-conditioned.

[zacko]

You should also take a step back and understand the basics, what this blade will do in general before taking on CFD simulations. How will the fluid behave? What will the blade achieve? Pressure decrease / increase? If you simply answer these simple questions you automatically understand why pressure in-out boundary condition simply doesn't work.