May 2024
Volume 75    Issue 5

Experimental and numerical investigation of methane flame propagation characteristics in a 30.5-m explosion reactor with obstacles

Juganda, Aditya; Maier, Patrick; Charrier, Erik; Brune, Jurgen; Bogin, Gregory


Confined explosions are a major risk in underground coal mine operations. Depending on confinement, ignition location and obstacles in the flame path, methane explosions can transition to detonations. This research focuses on explosion experiments in a reactor with diameter of 71 cm and length of 30.5 m, along with developing the corresponding computational fluid dynamics (CFD) model that captures the observed flame behavior. The results show that the 2D and 3D CFD models are able predict the experimental flame front propagation velocity, but the 3D model shows more explicit conformity than the 2D model.

Full-text paper:
Mining, Metallurgy & Exploration (2023) 40:2293–2304,


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