摘要
涡轮是飞机环控系统的重要组成部分,涡轮的结构参数对整个环控系统的性能有着重要的影响。本文以热力学第二定律为基础,以飞机整个环控系统的熵增作为目标函数,分析了涡轮结构参数对于环控系统熵增的影响。以升压除水环控系统为例,建立了相应数学模型,并进行了计算机仿真。研究表明,对涡轮叶轮系数、叶轮几何角,以及叶轮外径等参数进行优化,对未来复杂环控的设计具有十分重要的指导意义。
The turbine is an important part of the aircraft environmental control system( ECS),the structure of the turbine has an important impact on the efficiency of the ECS. In this paper,based on the second law of thermodynamics,the entropy increase of the entire aircraft environmental control system as the objective function,analyze the impact of the turbine structural parameters for the environmental control system entropy increase,establishthe corresponding mathematical models and computer simulations. The study show s that,it has great significance in guiding the future design of complex environmental control to optimize the structure and size of the turbine.
出处
《飞机设计》
2015年第6期50-53,共4页
Aircraft Design
关键词
环控系统
飞机
熵增
涡轮
设计
environmental control system
aircraft
entropy generation
turbine
design
