[cardioCFD]

Hi,

I have generated a mesh (in ICEM) over a 3D region with an internal wall separating it into two bodies.

However, once I import the mesh in CFX, I see that the internal wall is not recognised and it automatically named as Default Domain Default with a wall boundary condition on it.

I was wondering if anybody has a clue why this happens.

Many thanks in advance,

Best

[ghorrocks]

automatically named as Default Domain Default with a wall boundary condition on it.

That's what you wanted, isn't it?

[cardioCFD]

Originally Posted by ghorrocks

That's what you wanted, isn't it?

Hi,

Thanks for the reply. Not really because this surface (which is now located in Default Domain Default) should be an internal wall through which flow passes freely. But now it is automatically defined as a no-slip wall.

Thanks a lot.

Best

[Opaque]

In ANSYS CFX, there is no such thing as an internal wall.

Meshes do not have physics concepts attached to them. Once the mesh is imported, physics is added to sections of the mesh as you insert boundaries and define their type.

Are you referring to mesh faces between two sub-volumes of the mesh? If those faces are not identified as internal mesh faces (for which physics cannot be assigned), you must then insert a domain interface to join both sides of that surface you created in the ICEM to split the volumes. You can then indicate if the interface is a wall, or just flow pass-through boundary (general connection).

Hope the above helps,