发动机舱温度场仿真与分析  

Thermal simulation and analysis of the engine cabin

作　　者：康芹[1] 郭建利[2] 

机构地区：[1]陕西理工学院机械工程学院,陕西汉中723003 [2]陕西理工学院计算机科学与技术系,陕西汉中723001

出　　处：《陕西理工学院学报（自然科学版）》2010年第4期5-8,共4页Journal of Shananxi University of Technology:Natural Science Edition

基　　金：陕西理工学院专项科研基金项目(SLGQD0732)

摘　　要：利用热网络法和流体网络法对发动机舱进行热仿真。建立了飞行器发动机舱各部件与其内外流体之间的网络关系及仿真模型,并进行耦合求解,得到此发动机舱各部件不同位置的温度分布。根据所得的数据对发动机舱各部件受热后对工作性能的影响进行分析,对非耐热部件的热防护与热控进行分析与设计,为使发动机各个部件能够在比较理想的环境下工作,提出了表面抛光、加隔热层以及组合隔热等3种优化方案并进行仿真。Thermal network and fluid network method is used to simulate thermal field of the engine cabin.The temperature distribution of the engine cabins components is abtained.And a simultaneousl simulation model and cyber-relation between the component of the engine cabins and the flow was created.The influence of the performance after heating the component according the simulated data was analysed.Thermal protection and control of the nonrefractory component is analyzed and designed.The optimum proposal that samples the surface,thermal insulating layer was developed in order for the component to work in better conditions The result provided reference for the Engine Cabins layout design.

关 键 词：发动机舱 热网络 温度场 仿真 

分 类 号：V433.92[航空宇航科学与技术—航空宇航推进理论与工程]