Octo-TIGER / Radiation verification

Radiation test problems

M1 RK1 and FLD. Open a problem for its physical setup, comparison method, sources, and results at every completed resolution.

All requested simulations and postprocessing are complete1 completed runsl2-gaussian_pulse-m1

Saved-state movie

Gaussian Pulse · L2 · M1 RK1

121 stored states; 121 shown. Physical time: 0–1.5 s. Playback: 60 s.

Zero-order hold; no solution interpolation. Playback holds each saved numerical state over its time interval and includes endpoint holds.

All 121 snapshot times

Snapshot times: 0, 0.0125, 0.0275, 0.0375, 0.05, 0.0625, 0.075, 0.0875, 0.1, 0.1125, 0.125, 0.1375, 0.15, 0.1625, 0.175, 0.1875, 0.2, 0.2125, 0.225, 0.2375, 0.25, 0.2625, 0.275, 0.2875, 0.3, 0.3125, 0.325, 0.3375, 0.35, 0.3625, 0.375, 0.3875, 0.4, 0.4125, 0.425, 0.4375, 0.45, 0.4625, 0.475, 0.4875, 0.5, 0.5125, 0.5275, 0.54, 0.5525, 0.565, 0.5775, 0.59, 0.6025, 0.615, 0.6275, 0.64, 0.6525, 0.665, 0.6775, 0.69, 0.7025, 0.715, 0.7275, 0.74, 0.7525, 0.765, 0.7775, 0.79, 0.8025, 0.815, 0.8275, 0.84, 0.8525, 0.865, 0.8775, 0.89, 0.9025, 0.915, 0.9275, 0.94, 0.9525, 0.965, 0.9775, 0.99, 1.0025, 1.015, 1.0275, 1.04, 1.0525, 1.065, 1.0775, 1.09, 1.1025, 1.115, 1.1275, 1.14, 1.1525, 1.165, 1.1775, 1.19, 1.2025, 1.215, 1.2275, 1.24, 1.2525, 1.265, 1.2775, 1.29, 1.3025, 1.315, 1.3275, 1.34, 1.3525, 1.365, 1.3775, 1.39, 1.4025, 1.415, 1.4275, 1.44, 1.4525, 1.465, 1.4775, 1.49, 1.5 s.

Arrows show the independently evolved M1 radiation flux. Arrows have equal length and show direction only.

Movies show saved numerical states; see the final-time run report for analytic-reference applicability.

Central z=0+ radiation energy slice with faint cell mesh and equal-length flux direction arrows. Arrows show the independently evolved M1 radiation flux. Gaussian energy excess above the recorded background uses a labeled logarithmic floor. Fixed color limits; actual stored Silo times held without solution interpolation. Movies show saved numerical states; see the final-time run report for analytic-reference applicability. The maps show the full simulation domain without cropping.

Download MP4 · Rendering and timing metadata · Full run report

All campaign movies

Awaiting completed results
Thin transport

Streaming wave

A smooth, periodic radiation wave travels at the speed of light. Its phase and amplitude test transport accuracy.

0 completed resolutions

Setup & all results →
Awaiting completed results
Thin transport

Streaming front

A sharp, bright half-domain crosses a nearly dark background. Exact cell averages track both moving edges through the periodic box.

0 completed resolutions

Setup & all results →
Gaussian pulse energy comparison
Energy comparison · 32³ cells · t = 1.500000e+00 s
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

Setup & all results →
Awaiting completed results
Steady diffusion

Equilibrium sphere

A smooth spherical emitter balances outward radiation transport. An error-function solution describes its steady diffusion equilibrium.

0 completed resolutions

Setup & all results →
Awaiting completed results
Coupled radiation hydrodynamics

Subcritical radiative shock

Radiation heats gas ahead of a shock, forming a precursor whose gas temperature remains below the downstream equilibrium temperature.

0 completed resolutions

Setup & all results →
Awaiting completed results
Coupled radiation hydrodynamics

Supercritical radiative shock

A faster shock produces a stronger radiative precursor. Gas ahead of the shock approaches the downstream equilibrium temperature.

0 completed resolutions

Setup & all results →
Awaiting completed results
Coupled radiation hydrodynamics

Radiating blast wave

A spherical energy release drives a shock and radiation precursor into a radial atmosphere, evolved on a Cartesian mesh.

0 completed resolutions

Setup & all results →
Awaiting completed results
Nonequilibrium radiation diffusion

Marshak wave

Boundary illumination heats initially cold stationary material. Radiation and material energy profiles are compared with the semi-analytic Marshak diffusion solution.

0 completed resolutions

Setup & all results →
Combined plot reportAll norms CSVBatch metadata