[Tharanga]

Hi,

I want to make zero tangential velocity and other components untouched (none). Initially, I got a warning
" Some velocity components in the local coordinates are not fixed.
Please correct your input for cell zone 2"
I ignored it and ran the simulation and got convergence issues. Please give me some suggestion in order to create zero tangential velocity in a cell zone.
Thank you
F.Y.I
I have an interior face in the domain and it doesn't not have no slip condition. I'm trying enforce this by adding zero tangential velocity.

[`e`]

How are you adding zero tangential velocity to a non-no slip wall? If you want to have a slip wall, you could use Wall Motion > Stationary Wall and Shear Condition > Specified Shear with zero shear stresses.

[Tharanga]

Thank you for the reply. I have a interior face (situated at the interface of two domains). I want no slip condition at this interior face. If i change this in to a wall, I wont get the flow in to the other domain. Cheers

[Tharanga]

Originally Posted by Tharanga

Thank you for the reply. I have a interior face (situated at the interface of two domains). I want no slip condition at this interior face. If i change this in to a wall, I wont get the flow in to the other domain. Cheers

Also, I have one cell thickness layer which is separate zone. In this zone I can fix the velocities. This is the method I have used in the simulation.

[Johnr]

Hi,
I am trying to fix the axial velocity in a cell zone but getting error of pressure divergence. I have tried everything but can't solve the problem.

I am doing a 3D analysis of flow in two tanks connected by two pipes. One pipe has this small cylindrical cell zone(made by slicing operation) in which i am trying to fix the velocity. Putting a x momentum source term is working perfectly fine though.

Please help!