Experimental investigation on lean blowout dynamics of spray flame in a multi-swirl staged combustor

Qianpeng Zhao,Jinhu Yang,Cunxi Liu,Fuqiang Liu,Shaolin Wang,Yong Mu,Gang Xu,Junqiang Zhu

Thermal Science and Engineering Progress（2023）

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摘要

•Continuous lean blowout process of spray flames with linear reduction of fuel-to-air ratio.•Evolution of LBO performance under simulated flight-idle conditions inside a staged combustor.•LBO flame dynamics identified by proper orthogonal decomposition method.•Peak frequency transitions can be used as precursors to blowout events.

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关键词

Lean blowout,Spray flame,Multi-swirl staged combustor,Flame imaging,Proper orthogonal decomposition

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