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Título : | Premixed flames in a narrow slot with a step-wise wall temperature: linear stability analysis and dynamics |
Autor : | Kurdyumov, Vadim Fernández-Galisteo, Daniel JIménez, Carmen |
Palabras clave : | Premixed flame dynamics Combustion instabilities Non-symmetric flames micro-scale combustion heated channels |
Fecha de publicación : | 2021 |
Editorial : | Taylor and Francis |
Citación : | Combustion Theory and Modelling, 25:6, 1132-1157 |
Resumen : | Premixed flames in a narrow slot with a prescribed wall temperature subject to a Poiseuille flow are investigated for various Lewis numbers within a constant den- sity model and using irreversible Arrhenius kinetics. A global stability analysis of steady-state solutions is carried out together with time-dependent direct numerical simulations. The unsteady results are found in good agreement with the stability results. Additionally, it is demonstrated that for some values of the flow rate a mul- tiplicity of time-periodic states can take place. The multiple time-periodic solutions arise from combinations of various unstable modes, symmetric and non-symmetric with respect to the channel midplane. |
URI : | http://documenta.ciemat.es/handle/123456789/2046 |
ISSN : | 1364-7830 |
Aparece en las colecciones: | Artículos de Energía
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