摘要
发动机舱失火会直接威胁飞机的安全,开展失火仿真研究能够改进飞机设计。提出了一套飞机发动机舱失火仿真研究思路,并以某型飞机发动机风扇舱为实例,在火灾动力学模拟(Fire Dynamics Simulator,FDS)软件中进行建模,分别选取0~12000m高度的4种典型状态开展了仿真研究,对失火状态下发动机舱内的温度场、速度场和烟雾场进行了分析,为飞机发动机舱火警探测系统和灭火系统设计提供了优化建议。
Nacelle misfire will threaten the safety of aircraft directly, fire simulation study can improve aircraft design. The paper proposed a research thinking of aircraft nacelle misfire, and an example on transport aircraft nacelle was given and simulated. The simulation model was built based on Fire Dynamic Simulator （FDS） and simulation research were carried out in from four typical state 0;12000m. The temperature field, velocity field and smoke field in misfire were analyzed, and provided an optimized design proposal about aircraft nacelle fire detection system and extinguishing system.
出处
《航空科学技术》
2017年第8期21-27,共7页
Aeronautical Science & Technology
