volume 158, issue 12, P2384-2394 2011
DOI: 10.1016/j.combustflame.2011.05.013
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F. Duchaine, F. Boudy, D. Durox, T. Poinsot

Abstract: The sensitivity of laminar premixed methane / air flames responses to acoustic forcing is investigated using Direct Numerical Simulation to determine which parameters control their flame transfer function. Five parameters are varied: (1) the flame speed s L , (2) the expansion angle of the burnt gases α, (3) the inlet air temperature T a , (4) the inlet duct temperature T d and (5) the combustor wall temperature T w. The delay of the flame transfer function