The effect of reflected acoustic disturbances on flame front acceleration

被引：6

作者：

Volodin, V. V. ^{[1
]}

Korobov, A. E. ^{[1
]}

Golovastov, S. V. ^{[1
]}

Golub, V. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Joint Inst High Temperatures, Moscow 125412, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2015年 / 41卷 / 11期

基金：

俄罗斯科学基金会;

关键词：

COMBUSTION;

D O I：

10.1134/S1063785015110139

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The frequency spectrum of acoustic disturbances that are emitted by accelerating flame front in an air-hydrogen mixture within an axially symmetric channel with a uniform cross section is experimentally determined. The effect of acoustic disturbances that are reflected from the closed end of the combustion chamber on the flame front acceleration is studied. It is revealed that the frequency spectrum of generated acoustic vibrations under experiment conditions has maximums at frequencies close to 250, 800, and 1500 Hz. The average flame velocity is 200 m/s. Spectra of generated acoustic vibrations and the flame front velocity depending on the material of the closed end of the axially symmetric channel are obtained for the stoichiometric air-hydrogen mixture.

引用

页码：1051 / 1053

页数：3

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