Mesoscale Flames Exhibit Distinct Dynamical Regimes
A Feb 23, 2026 preprint by Akhil Aravind systematically examines flame regimes in a 5 mm quartz tube mesoscale combustor using premixed methane-air mixtures. Researchers recorded instantaneous OH* chemiluminescence, acoustic pressure, and high-speed imaging; applied recurrence quantification and spectral analyses, continuous wavelet transforms and phase plots; and trained a stacking-ensemble classifier to discriminate stable, repetitive extinction-ignition, and propagating regimes.
Scoring Rationale
Multimodal experimental analysis and ML classification drive the score; limited novelty and niche mesoscale scope reduce impact.
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