工况压力对分层火焰系统中压力振荡的影响

推进技术 ›› 2016, Vol. 37 ›› Issue (10): 1882-1892.

工况压力对分层火焰系统中压力振荡的影响

秦皓¹,林宇震¹,李继保²

北京航空航天大学能源与动力工程学院，北京 100191,北京航空航天大学能源与动力工程学院，北京 100191,中国航空工业集团公司商用航空发动机有限责任公司，上海 200241

发布日期:2021-08-15
作者简介:秦皓，男，博士生，研究领域为燃烧不稳定性。

Effects of Operating Pressure upon Pressure Oscillationin Stratified Flames System*

School of Energy and Power Engineering，Beihang University，Beijing 100191，China,School of Energy and Power Engineering，Beihang University，Beijing 100191，China and Commercial Aircraft Engine Company Limited，Aviation Industry Corporation of China，Shanghai 200241，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究工况压力对分层火焰系统中压力振荡频率的影响，通过实验方法测量了不同工况压力下分层火焰燃烧系统中的压力振荡特性，通过基于火焰响应模型的理论分析方法研究了压力振荡频率变化的原因。实验测试结果表明，当进口压力降低从2.6MPa降低至1.4MPa时，压力振荡频率具有规律性的减小约4%；而相对振荡幅值保持在0.2～0.3范围内，没有明显的规律。火焰响应模型的计算结果显示，雾化过程对火焰的响应特性影响最大。

关键词: 分层火焰；工况压力；火焰响应模型

Abstract: In order to study the effects of operating pressure on the dynamic pressure oscillation in the strat

Key words: Stratified flames；Operating pressure；Flame response model

秦皓,林宇震,李继保. 工况压力对分层火焰系统中压力振荡的影响[J]. 推进技术, 2016, 37(10): 1882-1892.

QIN Hao¹,LIN Yu-zhen¹,LI Ji-baO². Effects of Operating Pressure upon Pressure Oscillationin Stratified Flames System*[J]. Journal of Propulsion Technology, 2016, 37(10): 1882-1892.

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