JuliaFEM.jl/examples/gmsh_heat_equation/QUICK_START.md

Gmsh Heat Equation Example

Complete workflow demonstration addressing Issue #183.

Quick Links

• Working Example: gmsh_heat_equation.jl
• Gmsh Geometry: unit_square.geo
• Comprehensive Tutorial: ../../docs/book/gmsh_tutorial.md

What's Here

This example shows:

1. Mesh generation with Gmsh
2. Loading mesh into JuliaFEM
3. FEM assembly (K and M matrices)
4. Extracting matrices for external solvers
5. Integration with DifferentialEquations.jl

Academic Usage (Issue #183)

If you want JuliaFEM for discretization only (not built-in physics):

# After assembly:
K = problem.assembly.K  # Stiffness matrix
M = problem.assembly.M  # Mass matrix
f = problem.assembly.f  # Force vector

# ODE system: M * du/dt = -K * u + f
# Now use with your own solver!

See tutorial for complete explanation.