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论文:2017,Vol:35,Issue(5):798-803 |
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引用本文： |
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吴然然, 樊丁, 王莹, 彭凯. 航空空气减压器位移-压力特性及影响因素研究[J]. 西北工业大学学报 |
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Wu Ranran, Fan Ding, Wang Ying, Peng Kai. Displacement-Pressure Characteristics and Influence Factors' Analysis of Air Pressure Reducer[J]. Northwestern polytechnical university |
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| 航空空气减压器位移-压力特性及影响因素研究 |
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| 吴然然1,2, 樊丁1,2, 王莹1, 彭凯1 |
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1. 西北工业大学 动力与能源学院, 陕西 西安 710129;
2. 先进航空发动机协同创新中心, 北京 100191 |
| 摘要: |
| 为了分析空气减压器结构参数的变化对空气减压器位移-压力特性的影响，采用基于计算流体力学的计算机仿真方法对空气减压器的位移-压力特性进行研究，得到了不同的结构参数下的空气减压器的位移-压力特性曲线。对这些位移-压力特性曲线进行对比分析，结果表明：气针上、下游角度，气针最大直径，小孔直径以及气针通道入口处圆弧半径等结构参数中，气针的下游角度和最大直径对空气减压器特性的影响较为显著。通过修改气针下游角度和最大直径，能够尽可能地调整空气减压器的特性，以满足指标要求。 |
| 关键词:
空气减压器
位移-压力特性
计算流体力学
结构参数
流速
马赫数
湍流模型
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| Displacement-Pressure Characteristics and Influence Factors' Analysis of Air Pressure Reducer |
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| Wu Ranran1,2, Fan Ding1,2, Wang Ying1, Peng Kai1 |
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1. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China;
2. Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China |
| Abstract: |
| By using the computer simulation method based on computational fluid dynamics, this paper researched the influence of different structure parameters for the displacement-pressure characteristics of the air pressure reducer. The displacement-pressure characteristic curves of different structure parameters were achieved. Comparing these curves, it implies that, the downstream angle and the maximum diameter play a critical role in the characteristics of the air pressure reducer among the upstream angle, the downstream angle, the maximum diameter, the hole diameter and the arc radius at the passage entrance, etc. By modifying the downstream angle and the maximum diameter properly, the characteristics of the air pressure reducer can be adjusted to meet the index demand as well as possible. |
| Key words:
air pressure reducer
displacement-pressure characteristic
computational fluid dynamics
structure parameter
flow rate
Mach number
turbulence models
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| 收稿日期: 2016-11-12
修回日期:
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| DOI: |
| 基金项目: 国家自然科学基金（51506176）资助 |
| 通讯作者:
Email： |
| 作者简介: 吴然然(1988-),女,西北工业大学博士研究生,主要从事航空发动机控制研究。
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| 相关功能 |
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| 作者相关文章 |
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| 吴然然 在本刊中的所有文章 |
| 樊丁 在本刊中的所有文章 |
| 王莹 在本刊中的所有文章 |
| 彭凯 在本刊中的所有文章 |
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参考文献: |
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[6] 吴然然,樊丁,徐嫄乐,等. 某型空气减压器建模方案研究[C]//中国航空学会第十七届航空发动机自动控制专业学术交流会,2014:562-569 Wu Ranran, Fan Ding, Xu Yuanle, et al. Research on the Modelling Method for a Certern Type of Air Pressure Reducer[C]//The 17th Aeroengine Control Conference of Chinese Society of Aeronautics and Astronautics, 2014:562-569(in Chinese)
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