Experimental / Simulation Dataset to: "Flame retardant effects on non-premixed boundary layer flames"

Flame retardant effects on non-premixed boundary layer flames — Experimental and simulation datasets This dataset accompanies the publication "Flame retardant effects on non-premixed boundary layer flames" (https://doi.org/10.1016/j.firesaf.2026.104886). In fire scenarios, boundary layer flames (BLFs) develop at flammable "active" walls, sustained by volatiles released during thermal degradation of the wall material. Flame retardants (FRs) embedded in polymers are central to fire mitigation, yet their influence on BLF dynamics remains poorly characterized. This work presents a combined experimental and numerical investigation of non-premixed methane–air BLFs at two active-wall configurations (single-slot and multi-slot), examining the interplay between flame structure, slot configuration, flame standoff distance, heat release rate, and wall heat flux. The flames are generated using a side-wall quenching (SWQ) burner in which a primary premixed flame is complemented by methane injected through a secondary wall inlet above the primary quenching point, producing a wall-heating diffusion flame. The effect of phosphorus-based flame retardants (DMMP) on the non-premixed BLF structure is assessed numerically. For detailed information on data collection, processing, and analysis, please refer to the accompanying publication and the README file included in the .zip archive.