Abstract
In this paper we perform a numerical bifurcation analysis of a one-dimensional problem arising in premixed combustion in porous inert media. The analysis shows that multiple steady solutions may occur, that a minimal mass flow rate is required for steady combustion, and that solutions with complete combustion exist for a large range of mass flow rates. Moreover, we show that a jump discontinuity in porosity and cooling contributes to the stability of the combustion zone. The one-dimensional results are compared with computations for a corresponding two-dimensional problem. The qualitative agreement between the solutions is good along the cooling boundary, and satisfactory along the axis of symmetry. The one-dimensional problem can therefore be used as preparation for a more complex two-dimensional simulation.
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© 1999 Springer-Verlag Berlin Heidelberg
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de Neef, M., Knabner, P., Summ, G. (1999). Numerical Bifurcation Analysis of Premixed Combustion in Porous Inert Media. In: Bungartz, HJ., Durst, F., Zenger, C. (eds) High Performance Scientific and Engineering Computing. Lecture Notes in Computational Science and Engineering, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-60155-2_4
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DOI: https://doi.org/10.1007/978-3-642-60155-2_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-65730-9
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