表面电弧放电等离子体激励调控稳焰器的流动与燃烧  

Flow and combustion control by surface arc discharge plasma actuation for flameholder

作　　者：林振华 陈钱 LIN Zhenhua;CHEN Qian(School of Aeronautics and Astronautics,Sun Yat-sen University,Shenzhen 518107,China)

机构地区：[1]中山大学航空航天学院,广东深圳518107

出　　处：《中山大学学报（自然科学版）（中英文）》2024年第5期115-124,共10页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金(91741102);广东省基础与应用基础研究基金(2024A1515010712)。

摘　　要：针对表面电弧放电等离子体激励对稳焰器的调控问题,对表面电弧放电唯象模型的适用性进行了验证,并分析了不同激励位置和激励强度对稳焰器流场结构、燃料雾化、点火延迟以及火焰稳定性的影响。研究结果显示,不同激励位置对流场结构产生显著影响,尤其在激励能量有效集中时,形成强烈的激励区域,导致回流区膨胀,进而促进燃料雾化,减缓点火延迟及提高平均火焰温度。同时,随着激励强度的增加,回流区长度、混合效率和燃烧效率呈线性增加。According to the control mechanism of surface arc discharge plasma actuation on the flow and combustion of flameholder,the applicability of the phenomenological model of surface arc discharge is verified.And,the effects of different actuation positions and actuation intensities on the flow field structure,fuel atomization,ignition delay and flame stability in the flameholder are systematically analyzed.The results show that different actuation positions have a significant impact on the flow field structure,especially when the actuation energy is effectively concentrated and a strong actuation region is formed,which leads to the expansion of the recirculation zone,which in turn promotes fuel atomization,slows down the ignition delay and increases the average flame temperature.At the same time,with the increase of actuation intensity,the length of the recirculation zone,the mixing efficiency and the combustion efficiency increased linearly.

关 键 词：蒸发式稳焰器 流动 燃烧 表面电弧 等离子体激励 

分 类 号：V434[航空宇航科学与技术—航空宇航推进理论与工程]