Date: 2026-09-05 Purpose: One-layer CORC cable with a twisted periodic boundary condition.

What it shows

This deck uses a one-layer, three-tape CORC geometry with a twisted periodic condition. The top plane is the bottom plane rotated by the twist of one period, so each tape continues into its neighbor and the three tapes form one long conductor. A 90 A, 50 Hz sine drives the model for 20 ms with Newton and MUMPS. Compare it with corc_periodic_bc to see the difference between translated and twisted periodicity.

CORC(R) is a registered trademark of Advanced Conductor Technologies LLC, Boulder, CO, used with kind permission to identify the cable technology represented by this example (https://www.advancedconductor.com/).

Files

file	role
corc.geo	geometry; mesh it with gmsh
input.conf	deck
Allrun, Allclean	wrappers for the shared launcher

Run

gmsh -3 corc.geo -o corc.msh

../../build/bin/belfem # or mpirun -np 4 ../../build/bin/belfem

Or ./Allrun, which does both steps.

Shared launcher

../scripts/Allrun generates the mesh, chooses ranks and threads, and can submit to Slurm; ../scripts/Allclean removes run output. To use them from this directory, copy the two wrapper scripts Allrun and Allclean from examples/helix/ here and run ./Allrun (./Allrun --dry-run prints the plan first). If you copy this deck out of the tree, copy examples/scripts/ along with it and point the wrappers at its new location. The launcher does not build plugins; do that step by hand as described above. Per-deck settings go in a run.conf next to input.conf; see ../scripts/README.md.