[Crank-Shaft]

I am currently using ANSYS 15.0 suite and I do all meshing through ICEM CFD, for automotive aerodynamics.

My basic workflow involves importing a Parasolid (x_t) file and then creating the multi-block structured mesh, to export to a CGNS format for external use. I currently have a mesh which is gigantic and the domain is decomposed into 242 blocks, which became 484 blocks after using a mirror mesh feature.

Unfortunately, I realised that my origin is at the wrong location and I'd like to have it moved to the wind-tunnel floor rather than the tip of the vehicle. I am really hoping that there's an easier way to achieve this through ICEM than to go ALL the way back to the geometry and working through the painstaking process again.

Please inform us if there is some way to move the origin to the bottom prior to exporting to CGNS. I know how to re-orient the local axes for the individual blocks in the mesh, however, is there a similar way to modify the location and orientation of the global coordinate system prior to CGNS export?

Link to Files

Thanks in advance.

[kad]

Should be no problem. You can move the mesh to your desired location under "edit mesh". So convert your blocking to unstructured mesh and use the function for transforming mesh. No need to transform geometry or blocking.

[Crank-Shaft]

Originally Posted by kad

Should be no problem. You can move the mesh to your desired location under "edit mesh". So convert your blocking to unstructured mesh and use the function for transforming mesh. No need to transform geometry or blocking.

Thanks for your prompt reply. I have followed this method and found that the mesh is translated however, the original blocking and geometry is maintained in the same location. This could possibly be an advantage.

I will try out the final exported mesh in our solver and hopefully it will all work well!

Thanks for your assistance once again.

[Crank-Shaft]

Here is a follow-up question -

When creating a mesh for a relatively simple geometry, all of the blocks in the pre-mesh correspond to a domain in the final multiblock, structured mesh. However, when using a transformation to create the final mesh, such as for a symmetric geometry, I've had some difficulty in reorienting the individual local axes for the mirrored domains.

On the original blocks that were explicitly created, I have the option of changing the origin of the local axes however, on the mirrored domains, I am only able to swap i,j,k and can't change the location of the origin. Is there a better way to do this.

Thanks

[bestucan]

mesh could be transformed, so does geometry.geometry->transform geometry.