This is my first time posting and my first time using OpenMC. I was wondering how you would rotate geometry here? Right now, I am conducting a criticality test on 8 plutonium rods and they need to be rotated 26.33 degrees into the x-axis, here is what I have set up for my flux distribution to visualize the geometry:
Use cell.rotation or cell.rotation_matrix.
https://docs.openmc.org/en/stable/pythonapi/generated/openmc.Cell.html
I just tried that and I seem to be running into an issue saying that it cannot apply the rotation:
RuntimeError: Cannot apply a rotation to cell 3 because it is not filled with another universe application called MPI_Abort(MPI_COMM_WORLD, -1) - process 0 [unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=-1 : system msg for write_line failure : Bad file descriptor
Place all the cells that needs to be rotated in a Universe, fill a new Cell with that Universe, and apply the rotation to that Cell.