航空发动机燃烧室两相湍流燃烧建模与仿真  

Modeling and simulation of two-phase turbulent combustion in aeroengine combustors

作　　者：莫毅 陈璠 许笑颜 焦哲 卫刚 林宏军 肖为 王方[4] 任祝寅[5] MO Yi;CHEN Fan;XU Xiaoyan;JIAO Zhe;WEI Gang;LIN Hongjun;XIAO Wei;WANG Fang;REN Zhuyin(Aero Engine Academy of China,Beijing 101399,China;Aero Engine Corporation of China Shenyang Engine Research Institute,Shenyang 110066,China;Aero Engine Corporation of China Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,China;School of Energy and Power Engineering,Beihang University,Beijing 102206,China;Institute for Aero Engine,Tsinghua University,Beijing 100084,China)

机构地区：[1]中国航空发动机研究院,北京101399 [2]中国航发沈阳发动机研究所,沈阳110066 [3]中国航发湖南动力机械研究所,株洲412002 [4]北京航空航天大学能源与动力工程学院,北京102206 [5]清华大学航空发动机研究院,北京100084

出　　处：《清华大学学报（自然科学版）》2023年第4期670-680,共11页Journal of Tsinghua University(Science and Technology)

基　　金：国家科技重大专项(2017-I-0004-0005)。

摘　　要：航空发动机燃烧室具有内部结构复杂、燃烧组织多样、物理化学过程多变的特点。数值仿真技术的工程应用可有效缩短燃烧室的研制周期,减少试验数量和设计风险,备受研究人员重视。该文依据航空发动机燃烧室工程应用仿真需求,通过分析燃烧室典型仿真的特点和难点设计了一套数据结构合理、流程架构可拓展性高的软件框架,针对性开发集成了10类具备高精度优势的雾化、蒸发和湍流燃烧模型,研制出一套具有完全自主知识产权、可高效运行于现代主流高性能计算机之上的并行自适应非结构网格的燃烧室两相湍流燃烧数值仿真软件。典型工程全环主燃烧室和加力燃烧室上亿网格规模算例和工况的测试结果表明:燃烧数值仿真软件的两相湍流燃烧耦合仿真功能、精度和并行效率基本满足航空发动机燃烧室工程实用要求。[Objective]As the energy-producing component of aeroengines,the combustor is the core area of fuel atomization,oil and gas mixing,and chemical reaction.Its design directly affects the overall performance of the engine.The structure of an aeroengine combustor is complex,allowing for a series of complicated physical and chemical processes.[Methods]The application of numerical simulation is of great significance in shortening the development cycle of the combustor while reducing test experiments and risks in design.In this paper,we conduct a bottom-up study on framework design,model integration,software development,test validation,and engineering application of the self-developed software platform.First,we design a hierarchical simulation software by analyzing the common numerical algorithm of an individual physical model and optimizing the secondary development interface of the model code.The software framework can be divided into three levels from bottom to top:unstructured grid high-performance parallel programming framework,particle-fluid computing layer,and advanced physical models and methods.The software framework has a reasonable data structure and highly scalable function interface,which guarantees the independence and high maintainability of each model and supports the R&D team in realizing the efficient integration of different types of physical models.Second,for the complex two-phase turbulent combustion process in the combustor,ten physical models suitable for simulating engine combustors,such as fuel atomization,wall oil film,evaporation,and turbulent combustion models,are integrated.Four hierarchical test cases of three-stage swirl,gas-phase swirl,simple cylinder and model combustor configurations are constructed,and the coupling consistency of multiple models is studied and improved.Based on the work related to the framework,model,and validation,a parallel adaptive unstructured grid combustor two-phase turbulent combustion numerical simulation software(CBTLES),which can run efficiently on modern main

关 键 词：航空发动机燃烧室 软件框架 两相湍流燃烧 耦合一致性 自主仿真软件 全环燃烧室 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]