| 径向式可变几何旋流器开度特性计算方法 |
| |
| 引用本文： | 李功,李长林.径向式可变几何旋流器开度特性计算方法[J].航空动力学报,2004,19(3):338-341. |
| |
| 作者姓名： | 李功 李长林 |
| |
| 作者单位： | 西北工业大学,发展计划处,陕西,西安,710072;西北工业大学,能源与动力学院,陕西,西安,710072 |
| |
| 摘 要： | 介绍了径向式可变几何旋流器开度特性计算方法,随着航空发动机推重比(p/w)的不断提高,涡轮前温度在逐年提高,目前先进发动机涡轮前温度高达1800K。燃烧室工作油气比(F/A)将由0.02增至0.03,为了保证发动机燃烧室在较宽的工作油气比范围内具有最佳性能,采用径向式可变几何旋流器是有效技术途径之一,本文从数学关系上建立了该种旋流器开度特性的计算方法并给出算例。可供可变几何燃烧室设计参考。
|
| 关 键 词： | 航空、航天推进系统 可变几何旋流器 开度特性 可变几何燃烧室 |
| 文章编号： | 1000-8055(2004)03-0338-04 |
| 收稿时间： | 2003/6/16 0:00:00 |
| 修稿时间： | 2003年6月16日 |
Computational Method for Open Degree Characteristics of Radial Direction Variable Geometry Swirl |
| |
| LI Gong and LI Chang-lin.Computational Method for Open Degree Characteristics of Radial Direction Variable Geometry Swirl[J].Journal of Aerospace Power,2004,19(3):338-341. |
| |
| Authors: | LI Gong and LI Chang-lin |
| |
| Institution: | 1.Northwestern Polytechnical University,Xi'an710072,China2.Northwestern Polytechnical University,Xi'an710072,China |
| |
| Abstract: | The paper describes a computational method for open degree characteristics of radial direction variable geometry swirl.With the increase of aero-engine's propulsive-weight ratio (p/w),the temperature ahead of turbine has increased yearly. Now this temperature of advanced engine is as high as 1800 K and at the same time the fuel-air ratio (F/A) of combustion chamber increases up to 0.03 from 0.02.To ensure the best combustion performance when the chamber works in wide range of F/A,one of the effective technical approaches is to adopt variable geometry swirl.In this paper a mathematical relationship for the open degree characteristics of the swirl is formulated and examples are presented.All these can be used as reference to the combustion chamber designs. |
| |
| Keywords: | aerospace propulsion system variable geometry swirl open degree characteristic variable geometry combustion chamber |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
