空气系统双腔模型的压力动态特性分析

丁水汀; 车巍巍; 刘传凯

doi:10.13700/j.bh.1001-5965.2015.0256

空气系统双腔模型的压力动态特性分析

doi: 10.13700/j.bh.1001-5965.2015.0256

丁水汀^1,2,3, ,,
车巍巍³,
刘传凯⁴

1.
北京市航空器/发动机复杂系统安全性重点实验室, 北京 100083
2. 先进航空发动机协同创新中心, 北京 100083
3. 北京航空航天大学能源与动力工程学院, 北京 100083
4. 北京航空航天大学交通科学与工程学院, 北京100083

基金项目: 教育部长江学者创新团队“航空发动机复杂系统安全性”(IRT0905)

详细信息

作者简介:
车巍巍男,博士研究生。主要研究方向:发动机瞬态空气系统及总体性能。 Tel.: 13716745697 E-mail: cww861028925@163.com;丁水汀男,博士,教授,博士生导师。主要研究方向:燃气轮机热端旋转部件流动与换热机理及航空发动机适航性设计与验证技术。 Tel.: 010-82317435 E-mail: dst@buaa.edu.cn

通讯作者:
丁水汀, Tel.: 010-82317435 E-mail: dst@buaa.edu.cn

中图分类号: V228.3
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- 被引次数: 0
出版历程
- 收稿日期: 2015-04-24
- 修回日期: 2015-09-06
- 网络出版日期: 2016-04-20

Dynamic pressure characteristic analysis for double-cavity model of air system

1.
Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion System, Beijing 100083, China
2. Co-Innovation Center for Advanced Aero-Engine, Beijing 100083, China
3. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
4. School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Funds: Innovation Plan of Aero Engine Complex System Safety by the Ministry of Education Chang Jiang Scholars of China (IRT0905)

摘要

摘要: 当发动机突然加速或发生突发失效时,空气系统在短时间内由容腔效应和管道流体惯性所形成的压力波动将对某些空气系统零部件产生负面影响。在经过验证的模块化瞬态空气系统仿真程序的基础上,分析了双腔模型的管道不同部位和容腔的压力变化。重点考虑了关键元件的尺寸对压力变化的影响规律。结果表明,此瞬变过程中出现的压力波动与空气系统的几何结构尺寸密切相关。此模型分析方法可以作为研究整机空气系统瞬变过程的基础。
- 空气系统 /
- 双腔模型 /
- 压力波动 /
- 影响规律 /
- 发动机
Abstract: When the engine slam accelerates or suddenly fails, the pressure wave formed by cavity effect and pipe fluid inertia in a short time will have negative impact on some components of air system. On the basis of the simulation program of the modular transient air system, the pressure variation of cavity and different parts of pipe in the double-cavity model is analyzed. The influence law analysis of the size of the key components for pressure wave is mainly considered. Results show that the pressure wave produced in the transient state is closely related to the geometric structure size of the air system. The analysis method of this model can be used as a basis for fast transient research of air system of the integrated engine.
- air system /
- double-cavity model /
- pressure wave motion /
- influence law /
- engine

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参考文献(16)

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