基于电离种子的发射药燃烧生成等离子体研究

摘要

针对发射药燃气温度难以满足等离子体生成条件的问题,通过添加电离种子的方法提高燃气生成等离子体含量.基于气体平衡方程推导了发射药添加电离种子后的燃气电子密度计算公式,分析了电子密度随温度的变化规律,通过不同类型发射药的燃烧对比实验及双基药添加电离种子实验进行了验证.结果表明:电子密度随燃气温度的增加而增加,且添加电离种子能在现有发射药的基础上进一步提高燃气电子密度.研究成果为下一步等离子体在火炮发射过程中的应用提供理论依据.%Aiming at the problem that the gas temperature of propellant is difficult to meet the conditions of plasma generation,the method of adding ionized seeds to improve the content of gas generating plasma are introduced.Based on the gas balance equation,the calculation formula of the gas electron density of the propellant with ionization seeds was deduced.The variation law of the electron density with temperature was analyzed,and the comparison experiment of different types of propellants and ionization seed experiments were carried out.The results show that the electron density increases with the gas temperature,and the addition of ionized seeds can further enhance the electron density of the gas on the basis of the existing propellant.The research results provide a theoretical basis for the application of the plasma in the artillery firing process.