Summary
A numerical method is outlined for reactive and non reactive flows in the regime of a vanishing Mach number. Laminar flames are treated as reactive discountinuities by which burnt and unburnt gas is separated. This approach requires to explicitly prescribe the laminar burning velocity Si which is the speed of the flame relative to the unburnt gas. A level set representation of the flame front is used to describe the dynamical behaviour of the front and to obtain geometric information of the front such as normal vectors and local curvature etc. in an easy way. As the laminar burning velocity vanishes (s l ↦ 0) the front becomes a material interface which can be treated by the proposed method as well. The finite volume method is fully conservative and is based upon a projection method. Special attention was paid to design a very simple but efficient numerical scheme.
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Schneider, T., Klein, R., Fortenbach, R., Munz, CD. (2001). Numerical Methods for weakly compressible reactive Flows. In: Hirschel, E.H. (eds) Numerical Flow Simulation II. Notes on Numerical Fluid Mechanics (NNFM), vol 75. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-44567-8_12
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DOI: https://doi.org/10.1007/978-3-540-44567-8_12
Publisher Name: Springer, Berlin, Heidelberg
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