摘要
飞机电子设备舱内环境温度直接影响舱内设备的可靠性及寿命。严酷的气动热作用、舱体结构的复杂性以及换热方式的多样性使得高速飞机电子设备舱内环境温度监测具有较高难度。提出考虑气动热影响的整体热分析策略,求解高速飞机电子设备舱内环境,即利用气动加热工程算法与数值仿真联合获得设备舱外部环境温度,再将其作为边界条件,求解设备舱内部温度场。对典型高速飞机电子设备舱内环境温度进行了数值仿真,计算中考虑气动热影响,获得了电子设备舱内环境温度分布,并验证了分析方法的有效性。
The ambient temperature in the aircraft electronic equipment cabin directly affects the reliability and life of the cabin equipment.Due to the severe aerodynamic heating,the complexity of cabin structure and the diversity of heat transfer methods,it is difficult to monitor the ambient temperature in the electronic equipment cabin of high-speed aircraft.The idea of integral thermal analysis method is proposed considering aerodynamic thermal coupling effect,which is combining numerical simulation and aerodynamic heating engineering algorithm solving external thermal environment calculation,then the results is transformed into the boundary condition for internal environment simulation calculation.The ambient temperature in a typical electronic equipment cabin of high-speed aircraft is simulated numerically.The influence of aerodynamic heat is considered in the calculation,and the ambient temperature distribution in the cabin is obtained.The simulation results are verified by experiments.The results show that the simulation analysis method is reasonable and effective.
作者
张婕
秦强
杨志斌
ZHANG Jie;QIN Qiang;YANG Zhi-bin(Aircraft Strength Research Institute,AVIC,Xi′an 710065,China)
出处
《航空计算技术》
2021年第2期20-23,共4页
Aeronautical Computing Technique
