沈阳航空航天大学学报2017，Vol.34Issue(2)：11-18,8.DOI:10.3969/j.issn.2095-1248.2017.02.003
甲烷-空气同轴电极介质阻挡放电数值模拟
Numerical simulation on characteristic of CH4 /Air mixture of coaxial dielectric barrier discharge
摘要
Abstract
Numerical simulation of dielectric barrier discharge of CH4/air mixture was carried out by employing a coaxial cylindrical electrode with diameter of 10 mm under the condition of discharge voltage of 6 000 V.The influences of equivalence ratio on electron density and active particle concentration were analyzed.The results show that electron density increased with the shortening of the distance from the cathode.For a small scope near the cathode(0.05~0.4mm),the maximum value of electron density increased up to 0.1mm,and then decreased.The discharge greatly increased the molar concentration of NO,O3,CH3 and H.With reduction of equivalence ratio,molar fraction of the active particles decreased slightly,but still produced a plenty of active particles at the lowest equivalence ratio Φ=0.4.The electron density had no significant effect with the change of equivalence ratio conditions.关键词
介质阻挡放电/非平衡等离子体/活性粒子/电子密度/当量比Key words
dielectric barrier discharge/non equilibrium plasma/active particles/electron density/equivalence ratio分类
数理科学引用本文复制引用
陈雷,封超,宋鹏,刘凯,张静,刘宇..甲烷-空气同轴电极介质阻挡放电数值模拟[J].沈阳航空航天大学学报,2017,34(2):11-18,8.基金项目
国家自然科学基金(项目编号:51409158) （项目编号:51409158）
