高电压技术2017，Vol.43Issue(6)：1918-1924,7.DOI:10.13336/j.1003-6520.hve.20170527023
添加自由基对超燃尾喷管性能的影响
Effect of Addition of Radicals on Scramjet Nozzle Performance
摘要
Abstract
To study the influence of plasma on scramjet nozzle performance,O radicals,H radicals,and OH radicals were added in scramjet nozzle inlet condition to simulate chemical effect of plasma.The 9-specice andl9-step finite-rate chemical reaction models of H2/Air combustion,finite volume method with implicit scheme,and RNG k-ε turbulence models were adopted to calculate the chemical non-equilibrium flow in scramjet nozzle.The results show that the non-equilibrium effect can not be neglected in scramjet nozzle with hydrogen fuel working at the condition of Ma∞=11,h=40 kin.Lift and thrust will be enhanced by 3.63％ and 2.21％ when mass fractions of O radicals,H radicals and OH radicals are increased by 0.64％,0.15％,and 0.64％,respectively.Enhancement of scramjet nozzle performance is proportional to individually addition of O radicals,H radicals or OH radicals but accelerated with synthetically addition of these radicals,which proves that the performance of scramjet nozzle can be improved by chemical effect of plasma.关键词
超燃冲压发动机/喷管/升力/推力/自由基/等离子体/化学非平衡流动Key words
scramjet/nozzle/lift/thrust/radical/plasma/non-equilibrium reactive flow引用本文复制引用
卿泽旭,洪延姬,张鹏,刘毅..添加自由基对超燃尾喷管性能的影响[J].高电压技术,2017,43(6):1918-1924,7.基金项目
国家自然科学基金(11372356).Project supported by National Natural Science Foundation of China (11372356). （11372356）
