| 强瞬变空气系统的模块化仿真建模 |
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| 引用本文： | 刘传凯,刘海明,李艳茹,车巍巍,丁水汀.强瞬变空气系统的模块化仿真建模[J].航空动力学报,2015,30(8):1826-1833. |
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| 作者姓名： | 刘传凯 刘海明 李艳茹 车巍巍 丁水汀 |
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| 作者单位： | 北京航空航天大学 交通科学与工程学院, 北京 100191;北京航空航天大学 能源与动力工程学院 北京市航空器/发动机复杂系统安全性重点实验室, 北京 100191,北京航空航天大学 交通科学与工程学院, 北京 100191,北京航空航天大学 交通科学与工程学院, 北京 100191,北京航空航天大学 能源与动力工程学院 航空发动机气动热力国家级重点实验室, 北京 100191;北京航空航天大学 能源与动力工程学院 北京市航空器/发动机复杂系统安全性重点实验室, 北京 100191,北京航空航天大学 能源与动力工程学院 航空发动机气动热力国家级重点实验室, 北京 100191;北京航空航天大学 能源与动力工程学院 北京市航空器/发动机复杂系统安全性重点实验室, 北京 100191 |
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| 基金项目： | 基础科研资助计划(B2120132006);教育部长江学者创新团队“航空发动机复杂系统安全性”(IRT0905) |
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| 摘 要： | 提出一种针对强瞬变空气系统的模块化建模方法,该方法将空气系统模型分解为由规范接口互联的4类基本元件,并考虑了空气系统强瞬变过程中容腔效应和气体惯性力的耦合影响.基于面向对象的技术开发了仿真程序,并使用公开的数据对模型进行验证.结果表明:该仿真模型能够正确模拟空气系统强瞬变过程中的局部逆流、压力波传导、多容腔耦合振荡等毫秒时间量级物理现象,不仅如此,其模块化的设计特征也为进一步耦合精细的空气系统元件和建立复杂空气系统网络奠定了基础,该模块化仿真方法在航空发动机空气系统的复杂动态响应特性和机理的研究中具有切实应用前景.
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| 关 键 词： | 航空发动机 内流空气系统 瞬态 模块化建模 动态仿真 |
| 收稿时间： | 2014/2/23 0:00:00 |
Modularized simulation modeling of air system with fast transients |
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| LIU Chuan-kai,LIU Hai-ming,LI Yan-ru,CHE Wei-wei and DING Shui-ting.Modularized simulation modeling of air system with fast transients[J].Journal of Aerospace Power,2015,30(8):1826-1833. |
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| Authors: | LIU Chuan-kai LIU Hai-ming LI Yan-ru CHE Wei-wei and DING Shui-ting |
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| Institution: | School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion System, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China,School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China,School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China,National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China;Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion System, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China and National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China;Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion System, School of Energy and Power Engineering, Beijing University of Aeronuatics and Astronautics, Beijing 100191, China |
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| Abstract: | A modular modeling method for air system with fast transient was established. The air system model was decomposed into four kinds of basic units interconnected by the standard data interface, which accounts for combined effects of volume packing and flow inertia during rapid transients. The numerical code was programed by utilizing object oriented technology, and its predictions were validated against published data. The results show that the simulation model accurately predict the millisecond time scales physical phenomena of air system with fast transients, such as reversal flow, transmission of pressure wave, coupled oscillations between multiple cavities, etc. Moreover, its modular charicteristic allows integration of further detailed air system units and establishment of more complex air system network. The modularized simulation method has prospect in studying the complex dynamic characteristics and mechanism of aero-engine air system. |
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| Keywords: | areo-engine internal air system transient modular modeling dynamic simulation |
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