Examples

These examples show RayTraceHeatTransfer.jl at work, from a first grey problem to a million-element benchmark.

Participating media in 2D

• Example 1 — 2D Grey Participating Medium: the basic workflow, validated against Crosbie and Schrenker.
• Example 2 — Spectral Greenhouse Atmosphere: a spectral problem with adaptive spectral bins.
• Example 3 — Line Spectrum vs Line-by-Line Reference: a synthetic line spectrum against an independent line-by-line solution.
• Example 4 — Anisotropic Scattering vs a Discrete-Ordinates Reference: directional scattering and reflection on angular bins.
• Example 5 — Circular Enclosure from Triangular Elements: curved geometry built from triangles.
• Example 6 — Five-Pointed Star with a Volumetric Heat Source: a geometry generated by a loop, heated from within like a combustion chamber.

Surfaces in 3D

• Example 7 — 3D Surface Enclosure: analytical view factors in a cube.
• Example 8 — Triangulated Icosphere: convergence on a sphere built from triangles.
• Example 9 — Mixed Triangular and Quadrilateral Faces: meshes mixing both element shapes.
• Example 10 — Non-Convex Enclosure: an L-Shaped Duct: ray tracing where surfaces shadow each other.

Accuracy and scale

• Example 11 — Convergence in Rays and Mesh: how the solution converges with more rays and a finer mesh.
• Example 12 — Large Scale: a Million Elements: a billion rays and a million elements, against the diffusion approximation.