火箭推进2025，Vol.51Issue(2)：1-9,9.DOI:10.3969/j.issn.1672-9374.2025.02.001
PATR发动机高空起动/接力过程动态特性
Dynamic characteristics of PATR engine during high-altitude starting/relay processes
苗慧慧 1雍雪君 2王祎 2马元 3刘金鑫1
作者信息
- 1. 西安交通大学 航空动力系统与等离子体技术全国重点实验室,陕西 西安 710049||西安交通大学 机械工程学院,陕西 西安 710049
- 2. 西安航天动力研究所,陕西 西安 710100
- 3. 西安交通大学 机械工程学院,陕西 西安 710049||西安航天动力研究所,陕西 西安 710100
- 折叠
摘要
Abstract
For investigating the high-altitude starting/relay characteristics of the precooling air-turbo rocket(PATR)engine,a study was conducted on the dynamic characteristics during its starting and relay processes.A simplified 3D flow filed equivalent model of the vehicle incorporating the PATR engine with two-dimensional bilateral supersonic inlet was established.The validity of the 3D equivalent dynamic calculation methodology was verified using an unsteady flow field numerical simulation method.Under a typical working condition of Mach 3.5(Ma=3.5),the flow field matching characteristics,aerodynamic characteristics and aerodynamic parameters variation characteristics of the PATR engine's internal channel during the start/relay process were analyzed with the angle of attack α=0°and α=4°.Under extreme operating conditions with an angle of attack α=4°,the intensified surge phenomena result in increased aerodynamic forces acting on the inlet and the aircraft,while the rolling moment coefficient of the aircraft remains within a safe operational range.关键词
PATR发动机/超声速双旁侧二元进气道/高空起动/接力/动态特性Key words
PATR engine/supersonic bilateral inlet/high-altitude starting/relay/dynamic characteristics引用本文复制引用
苗慧慧,雍雪君,王祎,马元,刘金鑫..PATR发动机高空起动/接力过程动态特性[J].火箭推进,2025,51(2):1-9,9.
