火箭推进2025，Vol.51Issue(6)：25-33,9.DOI:10.3969/j.issn.1672-9374.2025.06.003
空气涡轮火箭冲压组合发动机模态转换过程低速通道系统匹配特性研究
Research on system matching characteristics of low speed channel for air turbo rocket ramjet combined engine mode conversion
摘要
Abstract
A model of the ATR(Air turbo rocket)engine system was established by numerical simulation,the system matching characteristics of the ATR mode conversion were studied,and the corresponding adjustment strategy of the ATR engine was developed to match the change of the mode conversion process.The numerical results show that in the single ATR mode stage,with the increase of flight Mach number,the thrust of the engine increases and the specific impulse decreases,and the thrust drop of the engine is about 10％under the influence of the adjustment strategy in the inlet starting stage.During the whole mode con-version process,the ATR engine air flow decreased by about 73.8％.As the opening of the splitter plate decreases,the ATR engine speed should be lowered accordingly to match the decrease in air flow.The speed should be reduced by 45％during the whole mode conversion process,compressor pressure ratio is always greater than 1.1 and in a stable and efficient working state.At the same time,the thrust of the ATR engine decreases linearly.关键词
涡轮基组合循环发动机/空气涡轮火箭冲压组合发动机/ATRR/模态转换/匹配特性Key words
turbine-based combined cycle engine/air turbo rocket ramjet engine/ATRR/modal conversion/matching characteristics分类
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薛划时,赵楠楠,马继承,马元,南向谊..空气涡轮火箭冲压组合发动机模态转换过程低速通道系统匹配特性研究[J].火箭推进,2025,51(6):25-33,9.基金项目
国家重点实验室基金(2023LB013007) （2023LB013007）
