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[1]刘 华,雍雪君,梁俊龙,等.超声速进气道及冲压发动机动态特性分析[J].火箭推进,2012,38(03):17-22.
　LIU Hua,YONG Xue-jun,LIANG Jun-long,et al.Analysis of supersonic air inlet and ramjet dynamic characteristics[J].Journal of Rocket Propulsion,2012,38(03):17-22.
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超声速进气道及冲压发动机动态特性分析

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 38 期数: 2012年03期 页码: 17-22 栏目: 研究与设计 出版日期: 2012-06-15
Title:
Analysis of supersonic air inlet and ramjet dynamic characteristics
文章编号:
1672-9374(2012)03-0017-06
作者:
刘 华; 雍雪君; 梁俊龙; 吴宝元
西安航天动力研究所，陕西 西安 710100
Author(s):
LIU Hua;  YONG Xue-jun;  LIANG Jun-long;  WU Bao-yuan
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
关键词:
超声速进气道; 冲压发动机; 动态特性; 燃烧模型; 燃油扰动
Keywords:
supersonic air inlet;  ramjet;  dynamical characteristic;  combustion
分类号:
V439-34
文献标志码:
A
摘要:
基于小偏差线性化思想，利用超声速进气道动力学模型计算得到，进气道激波位置和波后压力的响应幅值随频率增大整体趋于减小，但在各阶纵向谐振频率上存在谐振峰。并进一步考虑了燃烧室加质燃烧，分析了冲压发动机气路动态特性，推导出适用于冲压发动机的集中燃烧模型，研究表明在燃油喷注流量的扰动下，冲压发动机幅频响应谐振峰显著。
Abstract:
A result, in which the air inlet shock wave position and the wave downstream pressure amplitude decreased with the frequency increase, but there was a harmonic peak on the longitudinal harmonic frequency, was obtained by calculation of supersonic air inlet dynamics model based on a linearization method. The fuel addition in the combustion chamber was farther considered. The dynamic characteristics of ramjet air path were analyzed. A combustion model applying to the ramjet was deduced out for the ramjet dynamics analysis. The research indicates that the harmonic peak of ramjet amplitude-frequency response is obvious under the perturbation of fuel jet flow.

参考文献/References:

[1]常军涛, 鲍文. 一维超声速进气道运动激波的动态仿真[J]. 导弹与航天运载技术, 2007 (4): 48-51.
[2]WILLOB R G. A mathematical analysis of supersonic inlet dynamics, NASA TN D-4969[R]. USA: NASA, 1968.
[3]COLE G L, WILLOB R G. Analysis of the dynamic response of a supersonic inlet to flow-field perturbations upstream of the normal shock, NASA TN D-7839[R]. USA: NASA, 1975.
[4]李祥晟, 丰镇平.贫油预混燃烧室燃烧稳定性的数值研究[J]. 西安交通大学学报, 2006, 40(5): 502-505.
[5]IK Soo Park, SUN Kyoung Kim, JUNG Woo Park. Control-oriented model for intake shock position dynamics in ramjet engine[J]. Journal of Propulsion and Power, 2011, 27(2): 499-503.

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备注/Memo

收稿日期：2011-11-13；修回日期：2012-01-04
基金项目：国家“863”项目（2007AA705302）
作者简介：刘华（1982—），女，工程师，研究领域为冲压发动机系统技术

更新日期/Last Update: 1900-01-01