Experimental Study of the Flame Structure and Heat and Mass Transfer in a Hydrogen Jet Exhausting from a Slot into Air

IF 0.9 4区工程技术 Q4 ENERGY & FUELS

Combustion, Explosion, and Shock Waves Pub Date : 2024-04-22 DOI:10.1134/s0010508224010015

B. F. Boyarshinov, S. Yu. Fedorov, R. Kh. Abdrakhmanov, V. S. Naumkin

引用次数: 0

Abstract

The initial part of a hydrogen jet exhausting upward from a \(2 \times 20\) mm slot and burning in air is studied. The profiles of the streamwise and transverse velocity are determined by means of particle image velocimetry; the local temperature distribution and the composition of stable substances are obtained by the Raman scattering method with the use of a focusing resonator system. Based on experimental data, the contributions of molecular and convective transfer mechanisms to the heat release intensity is determined. It is shown that the maximum intensity of heat release depends mainly on gas-dynamic and thermophysical characteristics of the gas flow during its macroscopic motion.

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从狭缝排入空气的氢气射流中的火焰结构和传热传质实验研究

摘要研究了氢气射流从一个（2×20）毫米的槽中向上排出并在空气中燃烧的初始部分。通过粒子图像测速仪确定了流向和横向速度的剖面；利用聚焦共振系统，通过拉曼散射法获得了局部温度分布和稳定物质的成分。根据实验数据，确定了分子和对流传递机制对热释放强度的贡献。实验表明，热释放的最大强度主要取决于气体流在宏观运动过程中的气体动力和热物理特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Combustion, Explosion, and Shock Waves 工程技术-材料科学：综合

CiteScore

1.60

自引率

16.70%

发文量

审稿时长

5.7 months

期刊介绍： Combustion, Explosion, and Shock Waves a peer reviewed journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The journal presents top-level studies in the physics and chemistry of combustion and detonation processes, structural and chemical transformation of matter in shock and detonation waves, and related phenomena. Each issue contains valuable information on initiation of detonation in condensed and gaseous phases, environmental consequences of combustion and explosion, engine and power unit combustion, production of new materials by shock and detonation waves, explosion welding, explosive compaction of powders, dynamic responses of materials and constructions, and hypervelocity impact.