发动机舱燃烧场数值模拟研究

Study on Numerical Simulation of Combustion in Nacelle

民用飞机的安全性设计是十分重要的。民用飞机发动机防火系统为发动机舱提供火灾防护。发动机在工作过程中可能出现燃油泄漏,可能引起发动机舱着火。针对此情况对发动机燃油泄漏而着火的过程使用商业软件flu-ent进行数值仿真模拟,分析发动机舱着火状态下燃烧场的情况,为民用飞机发动机着火探测系统设计提供一定支持。

The safety design of civil transportation aircraft is crucial.The civil aircraft engine fire protection system provides fire protection function for nacelle.Engine fuel leakage may happen during engine operation and may result in fire in the nacelle.This study uses commercial software to simulate this situation numerically and analyze the combustion flow field status,supporting the design of civil aircraft engine fire detection system.