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[1]蔡锋娟,张玫,张蒙正.壁面孔型对超声速气流中喷注特性的影响[J].火箭推进,2017,43(04):18-22.
　CAI Fengjuan,ZHANG Mei,ZHANG Mengzheng.Effects of different wall surface orifices on injection characteristics of supersonic air flow[J].Journal of Rocket Propulsion,2017,43(04):18-22.
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壁面孔型对超声速气流中喷注特性的影响

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 43 期数: 2017年04期 页码: 18-22 栏目: 研究与设计 出版日期: 2017-10-01
Title:
Effects of different wall surface orifices on injection characteristics of supersonic air flow
作者:
蔡锋娟; 张玫; 张蒙正
西安航天动力研究所, 陕西 西安 710100
Author(s):
CAI Fengjuan;  ZHANG Mei;  ZHANG Mengzheng
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
关键词:
超声速气流; 壁面孔型; 喷注特性
Keywords:
supersonic air flow;  wall surface orifice;  injection characteristics
分类号:
V432-34
文献标志码:
A
摘要:
超声速气流中，燃料与来流空气的高效混合是燃烧室实现点火、稳焰及高效燃烧组织的前提。国内外研究者已对比研究了不同壁面孔型对超声速气流中喷注、混合特性的影响，相比于最常见的圆形喷孔，菱形、楔形-半圆、箭形及针形等喷孔用于超声速气流燃料喷注时，不仅有利于降低喷孔前缘边界层的分离，而且也有利于提升射流穿透深度；相比于单孔喷注，组合型喷孔能进一步增强燃料与来流空气在射流远场的混合效果。通过综述各型喷孔的喷注特性，分析提出了适用于超声速燃烧组织的壁面喷注孔型及其工程应用条件。
Abstract:
The efficient mixing of fuel jet and air flow in supersonic gas flow is a precondition to achieve ignition, flame stabilization and high efficiency combustion. The effects of different wall surface orifices on the injection and mixing characteristics have been studied by many researchers at home and abroad. Compared with the common circular orifice, diamond-shaped orifice, wedge-semicircle shaped orifice, arrowhead shaped orifice and stinger-shaped orifice are beneficial to reduction of the boundary layer separation at orifice front edge, and improvement of the penetration depth of the jet flow. Compared with the single orifice injection, the combined orifice can further enhance the mixing effect of the fuel and the incoming air in far field. In this paper, the wall surface injection orifice and engineering application condition that apply to the supersonic combustion are proposed on the basis of analysis of the injection characteristics of various orifices.

参考文献/References:

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相似文献/References:

[1]刘静,徐旭.超声速横向气流中喷雾的数值模拟[J].火箭推进,2006,32(05):32.
　Liu Jing,Xu Xu.Numerical simulation of liquid jet in supersonic cross flows[J].Journal of Rocket Propulsion,2006,32(04):32.
[2]刘昊[],贺云龙[],刘晓伟[].壁面组合孔喷注增强混合研究[J].火箭推进,2016,42(02):25.
　LIU Hao[],HE Yunlong[],LIU Xiaowei[].Study on a new injection technology for enhancing mixture by orifice set in wall[J].Journal of Rocket Propulsion,2016,42(04):25.

备注/Memo

收稿日期：2016-08-29；修回日期：2017-02-28 基金项目：国家863项目（2015AA0214） 作者简介：蔡锋娟（1985—），女，工程师，研究领域为组合推进燃烧组织技术

更新日期/Last Update: 1900-01-01