硼颗粒点火燃烧模型研究进展

硼作为固冲发动机推进剂高能组分具有巨大优势,但由于表面氧化层的覆盖对燃烧的抑制作用,导致硼颗粒的燃烧过程十分复杂。文章描述了硼颗粒燃烧的基本现象和过程,阐述了硼颗粒两阶段燃烧的现象本质。综述了以King模型和L-W模型为代表的半经验模型的研究进展,分析比较了两者建模机理的不同之处。详细阐述了以L-W模型为代表的动力学模型的建模机理和内容。介绍了化学机理模型的研究现状和基本原理,并分析比较了半经验模型与化学机理模型的优缺点。

Research on boron particles ignition and combustion model

Boron has a great advantage as a high-energy component of solid propellant.However,the combustion process of boron particle is complex due to the inhibition of oxide layer covering on the surface.Basic phenomena and process of boron combustion were described,and the essence of "two stage combustion" phenomena was discussed.The research on "semi-empirical model" which was represented by King model and L-W model were reviewed.The modeling mechanism of the two models was compared.The basic mechanism and contents of L-W model were explained.The research progress and basic principle of "chemical mechanism model" were introduced.Advantages and disadvantages of the two different kinds of models were analyzed and compared.