volume 161, issue 5, P1374-1389 2014
DOI: 10.1016/j.combustflame.2013.11.014
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Abstract: AbstractThis study describes an analytical method to compute azimuthal modes due to flame/acoustics coupling in annular combustors. It is based on a quasione-dimensional zero-Mach number formulation where N burners are connected to an upstream annular plenum and a downstream chamber. Flames are supposed to be compact and are modeled using identical Flame Transfer Function for all burners, characterized by an amplitude and a phase shift. Manipulation of the corresponding acoustic equations leads to a simple me…

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