MERRILL user manual
The MERRILL manual covers the full scripting language, material parameter conventions, meshing requirements, and all supported simulation protocols. Recommended reading before running anything beyond Tutorial 1.
Source code
MERRILL is developed and maintained by the Rock Magnetism group at the University of Edinburgh. The full source code is hosted on Bitbucket.
Pre-built mesh library
Ready-to-use PATRAN-format tetrahedral meshes for common grain geometries, meshed at 3–9 nm node spacing. Each set covers a range of elongation ratios (E00 = equidimensional through E50 = strongly elongated). Use these to skip meshing and go straight to running MERRILL scripts. See the Meshes README for full geometry specifications.
Download by geometry type
Sphere grains at elongation ratios E00–E50, meshed at 3 nm node spacing.
- Sphere E00 (equidimensional) — 42 MB
- Sphere E05 — 32 MB
- Sphere E10 — 32 MB
- Sphere E15 — 32 MB
- Sphere E20 — 32 MB
- Sphere E30 — 33 MB
- Sphere E40 — 34 MB
- Sphere E50 (most elongated) — 33 MB
Cuboid grains at elongation ratios E00–E50, meshed at 3 nm node spacing.
- Cuboid E00 (cube) — 32 MB
- Cuboid E05 — 33 MB
- Cuboid E10 — 32 MB
- Cuboid E15 — 32 MB
- Cuboid E20 — 32 MB
- Cuboid E30 — 33 MB
- Cuboid E40 — 33 MB
- Cuboid E50 (most elongated) — 32 MB
Cuboctahedral grains at elongation ratios E00–E50, meshed at 9 nm node spacing.
- Cuboctahedron E00 — 6.9 MB
- Cuboctahedron E05 — 8.8 MB
- Cuboctahedron E10 — 8.1 MB
- Cuboctahedron E20 — 7.8 MB
- Cuboctahedron E30 — 8.0 MB
- Cuboctahedron E40 — 7.5 MB
- Cuboctahedron E50 — 7.4 MB