Effect of equivalence ratio on the detonation noise characteristics of pulse detonation engine

被引：1

作者：

Xu, Gui-Yang ^{[1
]}

Li, Bao-Xing ^{[1
]}

Li, Hong-Yan ^{[1
]}

Zhu, Yan-Fang ^{[2
]}

Guan, Yi-Wen ^{[1
]}

Zhang, Jian-Xiong ^{[1
]}

机构：

[1] Xian Modern Chem Res Inst, Xian 710065, Peoples R China

[2] Xijing Univ, Xian 710065, Peoples R China

来源：

INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES | 2021年

关键词：

aerospace propulsion system; equivalence ratio; noise radiation; pulse detonation engine;

D O I：

10.1515/tjeng-2021-0016

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The experimental system of pulse detonation engine (PDE) is set up to investigate the influence of equivalence ratios on detonation noise characteristics. The research results show that as the equivalence ratio increasing, the amplitudes of detonation noise in all angles and locations increase, and the t(B) also increases simultaneously, while the t(A) increases first and then decreases. The equivalence ratio also has a great influence on the intensity of the detonation noise signal in the frequency band of 10-100 Hz, which increases firstly and then decreases with the increase of the equivalence ratio, and the maximum value is obtained at equivalence ratio of 1.1. The results are of great significance to study the mechanism of detonation noise and promote the process of the engineering application.

引用

页数：7

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