Flame Vision / Saffire-V: PMMA with thin ribs

Saffire-V: PMMA with thin ribs

Real NASA footage, measured frame by frame with a documented computer-vision pipeline. Switch between the raw footage, the computed flame outline, and the measurements.

The computer traces bright and blue flame pixels frame by frame. Not yet validated against hand-annotated real frames.

NASA footage. Overlays are this site's computed measurements.

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Units are pixels of the analysed rendition. NASA publishes no spatial calibration for this footage, so no length is converted to centimetres.

Evidence

Saffire-V, inside an uncrewed Cygnus cargo spacecraft

Material: PMMA (Plexiglas) with manufactured ribs, per NASA's description.

Oxygen, pressure and airflow for this footage are not given in the source.

“A sample of polymethyl methacrylate, also known as Plexiglas, was burned in the Saffire-V experiment. Ribs were manufactured into the material to see how the flame behaved when small structures were incorporated into larger materials. Researchers discovered that fires in microgravity typically grow and burn faster on the thinner ribs and materials as opposed to thicker samples on the right.”

NASA Image and Video Library: GRC-2021-CN-00008GRC, 2021-01-12. NASA media; not copyrighted in the US per NASA media usage guidelines. Credit NASA; no endorsement implied.