翼柱型装药发动机点火升压过程计算

Calculation of the Ignition Pressurization Course of Solid Motors with a Finocyl Grain

利用实验获得的翼槽内火焰传播规律经验公式 ,在 p(t)模型的基础上 ,建立了翼柱型发动机的点火升压计算模型 ,计算结果与实测数据吻合较好。同时就点火器流量、推进剂燃速、喷管堵盖打开压强等设计参数对发动机点火升压过程的影响进行了分析。

By using a empirical formula obtained from experiment of flame spread in fin slot region ,a calculation model of the ignition pressurization of solid motors with a finocyl grain is developed on the basis of p(t) model.The calculated results agree with the tested data .The effects of design parameters such as the igniter flow rate,burning rate,opening pressure of the nozzel closure on the ignition pressurization course of motor are analysed.