Exact transport
Streaming wave
A smooth, periodic radiation wave travels at the speed of light. Its phase and amplitude test transport accuracy.
2 completed resolutions
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Exact transport
Streaming front
A sharp, bright half-domain crosses a nearly dark background. Exact cell averages track both moving edges through the periodic box.
2 completed resolutions
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Telegraph equation
Gaussian pulse
A small Gaussian perturbation evolves in a fixed scattering medium. A Fourier solution of the telegraph equation supplies the reference.
1 completed resolution
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Steady diffusion
Equilibrium sphere
A smooth spherical emitter balances outward radiation transport. An error-function solution describes its steady diffusion equilibrium.
1 completed resolution
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