Combustion of rich hydrogen–air mixture stabilised near a cylindrical porous burner
Combustion of rich hydrogen–air mixture stabilised near a cylindrical porous burner
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圆柱形多孔燃烧器附近稳定的富氢空气混合物的燃烧
DOI：
10.1080/13647830.2020.1734238
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发表时间：
2020
影响因子：
1.3
通讯作者：
Gubernov
中科院分区：
文献类型：
--
作者：
Kichatov;Kolobov;Gubernov
本文数值研究了几何形状对稳定在燃烧器表面的氢气-空气火焰动力学的影响。研究了圆柱形燃烧器附近燃烧前沿稳定的两个主要区域：附着型和分离型，并与平面燃烧器进行了比较。详细研究了扩散-热失稳的中性稳定边界。与平面燃烧器附近稳定的燃烧前沿相比，附着式火焰的特点是，对于丰富的混合物组成，火焰变得不太稳定。分离火焰流型受出口发散的影响，对火焰产生区的流场有明显的扰动作用。与附着区中的分离区相比，曲率稳定了火焰锋面。本研究中研究的火焰特性对化学动力学模型极为敏感。所作的结果和观察可用于支持实验设计，以建立额外的验证详细的化学反应机理的实验。
In this paper, the effect of geometry on the dynamics of the hydrogen–air flame stabilised on the surface of a burner is investigated numerically. Two main regimes of combustion front stabilisation near the cylindrical burner: attached and detached flames are investigated and compared to the planar case. The neutral stability boundary for diffusive-thermal instability is studied in detail. The attached flame regime is characterised by the fact that for rich mixture compositions the flame becomes less stable in comparison to the combustion front stabilised near a planar burner. The detached flame regime is influenced by the divergent outflow, which significantly perturbs the flow field in the product regions of the flame. In contrast to the detached regime in the attached regime curvature stabilises the flame front. The flame properties investigated in this study are extremely sensitive to chemical kinetic models. The results and observations made can be used to support experimental design to set-up experiments for additional validation of detailed mechanisms of chemical reactions.
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火焰稳定器对平面火焰的影响，包括其静态稳定性
DOI：
10.1098/rspa.1980.0118
发表时间：
1980
期刊：
Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
影响因子：
--
作者：
J. F. Clarke;A. McIntosh
通讯作者：
A. McIntosh
影响因子：
2.2
作者：
V. Bykov;V. Gubernov;U. Maas
通讯作者：
V. Bykov;V. Gubernov;U. Maas
燃烧器稳定预混火焰中的分叉现象
影响因子：
1.9
作者：
S. Margolis
通讯作者：
S. Margolis
辐射损失对多孔塞燃烧器预混火焰稳定性的影响
影响因子：
4.4
作者：
V. Kurdyumov;M. Sánchez
通讯作者：
M. Sánchez
影响因子：
4.4
作者：
V. Gubernov;V. Bykov;U. Maas
通讯作者：
V. Gubernov;V. Bykov;U. Maas