New 118-line minimal test demonstrating complex multi-physics:
- Tests 4-field THME system (Temperature, Displacement, Pressure,
Electric potential) in under 100 lines of code
- Demonstrates all 6 bidirectional couplings (12 coupling blocks)
- Shows that complex physics does not require complex code
- Validates thermal expansion, Biot poroelasticity, thermal pressurization,
electro-osmotic, Seebeck/Peltier, and piezoelectric coupling
- Tests simultaneous assembly of all physics in one element loop
- Demonstrates type-safe field access and local-to-global mapping
Minimal but complete demonstration of multi-field Element API for
geothermal, nuclear waste, CO2 sequestration, and smart materials.
New 399-line test file demonstrating ultimate multi-physics coupling:
- Tests 4-field system: Temperature (vertices), Displacement (vertices),
Pore pressure (cells), Electric potential (edges)
- Implements fully coupled THM-E system with off-diagonal blocks
- Demonstrates thermal-mechanical coupling (K_uT)
- Demonstrates poroelastic coupling (K_up, K_pu)
- Tests simultaneous assembly in one pass for all fields
- Validates global DOF numbering across different entity types
- Shows type-safe field access: elem.dof_indices.T, .u, .p, .φ
Ultimate demonstration of multi-field Element API for complex
coupled physics: geomechanics, CO2 sequestration, nuclear waste,
electrokinetic remediation, geothermal energy.
New 166-line test file for variadic MixedDOF type system:
- Tests type-level multi-field composition with @MixedDOF macro
- Validates DOF indices structure (tuple of tuples, not NamedTuple)
- Tests DOF sharing between elements for different entity types
- Compares MixedDOF (vararg) vs NamedTuple approaches
- Demonstrates 4-field mixed system: Temperature, Displacement,
Pressure, Electric potential on different entities
Validates variadic approach to multi-field elements where DOF types
are mixed as type parameters rather than named fields.
Jukka Aho