Abstract

The results of an experimental study of the effect of integral electrical and acoustic action on flame stabilization during combustion of a homogeneous air-methane mixture are presented. The experiments were carried out for fuel-rich lean mixtures. The effect of an external AC electric field in the combustion zone on flame stabilization is studied with and without external acoustic impact. The most effective relative position of the electrodes for flame stabilization was identified. Extended limits of steady-state combustion of air-methane mixture were achieved. The analysis of flame structure and shape as well as the spectral characteristics of the flame front pulsation under electrical and acoustic action were carried out.

中文翻译：

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电场和声场对甲烷气喷吹特性的复杂影响

摘要

给出了在均匀的空气-甲烷混合物燃烧过程中整体电声作用对火焰稳定作用的实验研究结果。针对富含燃料的稀薄混合物进行了实验。研究了有无外部声冲击的情况下，燃烧区中外部交流电场对火焰稳定的影响。确定了用于火焰稳定的电极的最有效相对位置。达到了空气-甲烷混合物稳态燃烧的扩展极限。对电和声作用下的火焰结构和形状以及火焰前沿脉动的频谱特性进行了分析。