机械制造与自动化2026，Vol.55Issue(2)：56-60,65,6.DOI:10.19344/j.cnki.issn1671-5276.2026.02.011
固体燃料超燃冲压发动机结构变化对推力特性的作用机理
Effect of Structure Expansion on Thrust of Solid-fuel Scramjet
梅冰清 1武志文 1张皓2
作者信息
- 1. 北京理工大学,北京 100080
- 2. 西安先进控制技术研究所,陕西西安 710065
- 折叠
摘要
Abstract
Soplid-fuel scramjet,though being an ideal propulsion system for hypersonic vehicle,its thrust will drop drastically in working process due to the normal shock waves occurring in the mainstream of the combustor caused by the regression of fuel grain.The study was aimed at finding out the direct reason of the occurrence of the normal shock waves and clearing the relation between regression of the fuel grain and the thrust loss.The reserch on the flow field of the combustor was conductedb by means of numerical simulation.The results show that pressure distributed on the interface between the cavity and mainstream has the greatest impact on the flow of the mainstream,while the pressure on the interface has a negative linearity relevance to the radius of the cylindrical section,based on which the range of the radius of cylindrical section is abtained to avoid the occurence of normal shock waves.关键词
固体燃料超燃冲压发动机/推力下降/计算流体动力学/结构优化Key words
solid-fuel scramjet/thrust loss/computational fluid dynamics/structural optimization分类
航空航天引用本文复制引用
梅冰清,武志文,张皓..固体燃料超燃冲压发动机结构变化对推力特性的作用机理[J].机械制造与自动化,2026,55(2):56-60,65,6.
