Three-dimensional simulations of isobaric premixed flames freely propagating in narrow circular channels: breaking of symmetry

• Published in: Combustion theory and modelling Vol. 25; no. 7; pp. 1352 - 1374
• Main Authors: Dejoan, Anne, Kurdyumov, Vadim
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 10.11.2021; Taylor & Francis Ltd
• Subjects: Adiabatic conditions; Axisymmetric flow; Bifurcations; Broken symmetry; Channels; Critical flow; Extinguishing; Flow velocity; Laminar flow; Lewis number; Numerical analysis; Premixed flames; premixed laminar flame; Shape effects; Symmetry; symmetry breaking; Three dimensional flow; three-dimensional circular channel; wall-heat losses
• ISSN: 1364-7830; 1741-3559
• DOI: 10.1080/13647830.2021.1977852

In this work we perform three-dimensional simulations to study the breaking of symmetry of lean premixed isobaric flames propagating in narrow channels of circular cross-section subject to an inlet Poiseuille flow. In particular we consider the effects of the flow rate, the channel diameter, wall he...