[fanta]

Hi,
i am stuck with a problem and thought i would like to ask here in the OpenFOAM Sub-Forum instead of asking at the Ansys Meshing Forum.


I want to create a 2D study in OpenFOAM. How do i mesh it with Ansys? There is no z-direction. As far as i understand for OpenFOAM 2D studies are 3D with one cell in z-direction (in my case its the z-direction). So I need a 3D body, since i have to name the faces for the boundary conditions. But how do i mesh with Ansys, I don't know how it can be done with Ansys Workbench.

[shereez234]

Originally Posted by fanta

Hi,
i am stuck with a problem and thought i would like to ask here in the OpenFOAM Sub-Forum instead of asking at the Ansys Meshing Forum.


I want to create a 2D study in OpenFOAM. How do i mesh it with Ansys? There is no z-direction. As far as i understand for OpenFOAM 2D studies are 3D with one cell in z-direction (in my case its the z-direction). So I need a 3D body, since i have to name the faces for the boundary conditions. But how do i mesh with Ansys, I don't know how it can be done with Ansys Workbench.

You just create a regular ANSYS 2D mesh and then export it to OpenFOAM.

The way to convert a fluent style mesh to OpenFOAM is :
fluentMeshToFoam "name.msh"

there is one for CFX mesh as well.


OpenFOAM will automatically extrude it to three D (with one cell in Z)
The extrusion width can then be found using the "checkMesh" utility,

After that you can scale the Z extrusion to by using the command "transformPoints -scale "(X Y Z)"

Beware that the extrusion will be done in +Z and -Z like "0.005 and -0.005" giving a total extrusion of 0.01

best