[amin.z]

Hi friends!

I'm trying to analyse a centrifugal compressor in ANSYS Fluent 14.5
so I'm using "match control" in ANSYS meshing for generating periodicity mesh!
but when I'm updating generated meshing ANSYS says this error:

"The mesher cannot find matching topology for following topology.please verify that the topology is the same shape and size. also verify the position and orientation of any associated coordinate systems."

I checked the geometry and the faces are same for both sides and the edges and surfaces area are equal!

Can anyone help me?

[amin.z]

any solution for this problem?
any help?
any one?
...?

[amfarhoudi]

I got this error too, please help if anyone know how to get through this error.

thanks

[amin.z]

it means the face you've selected it's not completely equal,
also sometimes ansys makes this error because the reference frame you've chosen for the matching control isn't valid

[Shubham_SD]

I too had a similar problem. Finally, I got the solution to this.

Actually, I had to import a turbine blade (iges) and subtract it from a domain created in Ansys DM. When I first imported the geometry and then made the domain in DM, the Mesh module showed the same error.

I think importing the geometry into DM may change the coordinate system at times creating slight error, which I confirmed by creating a new coordinate system (using Type:From Coordinates and selecting a vertex which had to be on axis - but this was off-center which created the problem).

Solution:
First Creating the domain/ dummy sketch in DM and then importing external geometry resolves the problem.

Shubham

[Mohammed Ahmed]

Shubham_SD... Thank you for your help