通用无量纲侵蚀燃烧模型  

Universal non-dimensional erosive model

作　　者：黄礼铿[1] 刘徐飞 霍东兴[1] 马利峰[1] 

机构地区：[1]中国航天科技集团公司四院四十一所固体火箭发动机燃烧热结构与内流场国防科技重点实验室,西安710025

出　　处：《固体火箭技术》2016年第2期184-187,共4页Journal of Solid Rocket Technology

基　　金：国防基础科研项目(B0320132006)

摘　　要：Mukunda和Paul提出了与发动机尺寸、形状以及推进剂无关的通用侵蚀燃烧机理,但该模型没有考虑负侵蚀燃烧的影响。利用侵蚀燃烧过程的无量纲参数,将该模型进行扩展,以考虑负侵蚀燃烧影响,发展出通用无量纲侵蚀燃烧模型。将该模型与一维非定常内弹道计算方法相结合,进行无喷管助推器内弹道性能分析。通过对不同燃温下串装双燃速无喷管助推器内弹道性能的分析,得到了与实验数据相吻合的压强以及推力分布。验证了该无量纲侵蚀燃烧模型的通用性,由于模型与发动机尺寸、形状以及推进剂无关,使得该方法成为设计分析无喷管助推器的可靠实用工具。Universal nature of the erosive burning process was proposed by Mukunda and Paul irrespective of size, shape and type of the propellant, but it cannot address negative erosive burning.In the present work, this universal model was extended to in- elude negative erosive burning.The model was then integrated with a one-dimensional unsteady internal ballistic analysis code.The performance of two series dual burning rate grain nozzleless boosters were analyzed, and a good prediction of pressures and thrust were observed.This study confirms the universality of the extended non-dimensional model which addresses negative erosive burning also.The simplicity of the model makes it a useful tool for design and analysis of nozzleless boosters of any size and port geometry, and any type of propellant.

关 键 词：无喷管助推器 侵蚀燃烧 无量纲 侵蚀模型 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]