摘要
将元素势法运用于航空发动机燃气热力性质计算。在数值计算的基础上,重点研究了燃气热力性质随燃料种类、油气比、燃烧室压强以及反应物初温等因素的变化规律,并以组合动力装置双模态涡轮为对象,进一步探究了燃气的热力性质对变比热涡轮特性参数的影响,总结了双模态涡轮在不同油气比下涡轮特性之间的换算关系式。
In this paper,the elemental potential approach is applied to the calculation of the thermal properties of the gas in areo-engines.On the basis of numerical calculation,the variation of thermodynamic properties of the gas with fuel type,fuel-air ratio,combustion chamber pressure and initial temperature of reactants are mainly studied.Furthermore,the dual-mode turbine of the integrated power unit is taken as object and the influence of the thermal properties of the gas on the turbine characteristic parameters is researched on.The conversion equations between the characteristic parameters of dual-mode turbines at different fuel-air ratios are sumonarised.
作者
陈典
田宏星
傅鑫
CHEN Dian;TIAN Hongxing;FU Xin(Jiangsu Province Key Laboratory of Aerospace Power System,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;AECC Hunan Aviation Power plant,Zhuzhou 412002,China)
出处
《机械制造与自动化》
2020年第5期37-40,79,共5页
Machine Building & Automation
关键词
元素势
航空发动机组合动力装置
双模态涡轮
涡轮特性参数
相似准则
element potential
integrated power unit of areo-engine
dual-mode turbine
turbine characteristic parameters
similarity criteria
