航空发动机气动声学设计的理论、模型和方法

根据对飞机噪声控制技术历史发展演化过程的总结分析，研究了民用航空发动机气动与声学一体化设计的目标、方法、流程、理论模型和发展趋势等。基于对航空发动机气动设计过程的分析，给出了航空发动机气动与声学一体化设计的流程和方法。分别从“发动机总体热力循环设计”“发动机部件通流设计”“发动机部件三维详细设计”等三个流程，介绍了航空发动机声学设计理论和技术国内外的发展情况，详细论述了发动机气动声学设计的理论、模型和方法，分析了目前航空发动机声学设计理论的主要问题及未来的研究重点，并以具体发动机设计实例分析了不同设计阶段航空发动机的气动与声学一体化设计方法思想。

Theory, Model and Method of Aero-Engine Aeroacoustic Design

According to the summary, analysis and reviews of the historical development and evolution of aircraft noise control technology, the goal, method, process, theoretical model and development trend of integrated aerodynamic and acoustic design of civil aero-engine are studied. Firstly, based on the analysis of aero-engine aerodynamic design process, the integrated aerodynamic and acoustic design method and process of aero-engine was presented in this paper. Then, the paper introduces aeroengine acoustic design in the three processes of "overall thermodynamic cycle design of engine", "through-flow design of engine components" and "three-dimensional detailed design of engine components", analyzes the development of aeroacoustic design theory and technology, and discusses the theory, model and method of aeroacoustic design of aeroengine in detail. Finally, the paper analyzes the main problems of aeroengine acoustic design theory and the future research focus and development direction. The aeroacoustic design method of the engine in different design stages is analyzed with a specific engine design example in this paper.