Date: 2026-09-05 Purpose: 2D racetrack coil cross section with a table-driven REBCO tape.

What it shows

A racetrack-coil cross section (see racetrack2d.pdf) containing a thin-shell tape stack and a copper bulk conductor. The superconductor uses the sp-ap.hdf5 table, and the stack carries a 3040 A, 50 Hz sine. The mesh uses meters. Compare with tapestack2d_layered, which resolves every layer of the tape with built-in materials.

Files

file	role
2D_tapestack.geo	geometry (m); mesh it with gmsh
racetrack2d.pdf	sketch of the coil the section belongs to
input.conf	deck

Run

gmsh -2 2D_tapestack.geo -o 2D_tapestack.msh

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

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.