Abstract:Premixed hydrogen–air explosion experiments were
carried
out in a 1000 mm × 50 mm × 10 mm half-open narrow channel,
concerning with the influences of equivalence ratio and ignition position
on explosion behaviors. Experimental phenomena were different from
explosion in large space. The results indicated that when ignited
at the closed end of the channel, three overpressure peaks appeared,
caused by the rupture of the film, Helmholtz Oscillation, and the
flame-acoustic interaction, respectively. As the equivale… Show more
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