中山大学学报（自然科学版）（中英文）2025，Vol.64Issue(2)：103-111,9.DOI:10.13471/j.cnki.acta.snus.ZR20240102
介质阻挡放电等离子体激励调控稳焰器液雾场
Flameholder spray control by dielectric barrier discharge plasma actuation
摘要
Abstract
A study on the unsteady kerosene spray field of subsonic combustor evaporative flameholder was carried out.The Euler-Lagrange method is used to realize the two-way coupling of turbulent air and discrete droplet,and the effect of dielectric barrier discharge plasma on the flow field is simulated by volume force.The research results indicate that dielectric barrier discharge plasma actuation with different actuation position,actuation voltage and actuation frequency can control the flow field in the recirculation zone after the flameholder,the kerosene spray field and the mixing of kerosene and air through changing the local momentum of the fluid.The optimal actuation parameters corresponding to the specific flow conditions can often be determined.Specifically,under the conditions of incoming flow studied in this paper,applying plasma actuation with a voltage of 15 kV and a frequency of 15 kHz at the front section outside the flameholder wall can increase the length of the recirculation zone and the area of the low-speed region behind the flameholder,improve the kerosene atomization and evaporation,promote the mixing of fuel and oxidizer,prolong the residence time of the combustible mixture,and thereby facilitate reliable ignition and sustain stable combustion.关键词
蒸发式稳焰器/煤油液雾场/调控/介质阻挡放电/等离子体激励Key words
evaporative flameholder/kerosene spray field/control/dielectric barrier discharge/plasma actuation分类
航空航天引用本文复制引用
蔡树峰,陈钱..介质阻挡放电等离子体激励调控稳焰器液雾场[J].中山大学学报（自然科学版）（中英文）,2025,64(2):103-111,9.基金项目
国家自然科学基金(91741102) （91741102）
广东省基础与应用基础研究基金(2024A1515010712) （2024A1515010712）
