基于T型燃烧器的非线性不稳定参数分析

发布时间：2018-05-01 11:09

本文选题：非线性不稳定 + T型燃烧器技术　；参考：《固体火箭技术》2016年03期

【摘要】：基于脉冲触发T型燃烧器技术,对T型燃烧器内的平衡压强上升(DC Shift)和初始极限幅值进行测量,获得DC Shift、初始极限振幅以及压强耦合响应函数(Rp)三者之间的相互关系。实验结果表明,T型燃烧器中可测量得到推进剂燃烧产生的平衡压强上升现象,且与初始极限振荡幅值的二次方成正比;推进剂配方对DC Shift影响较大,即压强耦合响应函数值越高,推进剂燃烧产生DC Shift越大;推进剂压强耦合响应函数、初始极限幅值和DC Shift三者之间存在一定的耦合关系,这一结果与Flandro的平衡压强上升理论基本一致。
[Abstract]:Based on the pulse triggered T type burner technique, the relationship among DC shift, initial limit amplitude, initial limit amplitude and pressure coupled response function (RP) is obtained by measuring the equilibrium pressure rise (DC shift) and the initial limit amplitude in the T type burner. The experimental results show that the equilibrium pressure rise caused by propellant combustion can be measured in the T type burner, which is proportional to the quadratic power of the initial limit oscillation amplitude, and the propellant formulation has great influence on DC Shift. That is, the higher the pressure coupling response function, the larger the DC Shift produced by propellant combustion, and the coupling relationship exists between the pressure coupling response function, the initial limit amplitude and DC Shift. The results are in good agreement with Flandro's equilibrium pressure rise theory.
【作者单位】：西北工业大学燃烧热结构与内流场重点实验室;
【基金】：国家自然科学基金(51206136) 中央高校基本科研业务(3102014ZD0032)
【分类号】：V430

【相似文献】