Abstract
In order to improve our knowledge in turbulent combustion, it is of great interest to thoroughly investigate the interaction between a flame front and a single vortex. The aim of the present study is to simulate a buoyant nonpremixed H2/O2 jet flame. The natural instability of the jet is excited by gravity so that coherent structures appear periodically at a frequency of about 15 Hz. The properties of the flame are highly dependent on diffusion and local mixing induced by these large-scale structures. To compute this unsteady flame, we develop a low-Mach number code derived from a DNS solver that relies on detailed chemistry and transport models. The numerical results are successfully compared to the experimental measurments of OH mole fraction and temperature. In particular, this comparison shows a very good agreement in both shape and level for the temperature field.
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© 2002 Springer Science+Business Media Dordrecht
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de Charentenay, J., Thévenin, D., Zamuner, B. (2002). Simulation of a Buoyancy-Driven Jet Diffusion Flame. In: Pollard, A., Candel, S. (eds) IUTAM Symposium on Turbulent Mixing and Combustion. Fluid Mechanics and Its Applications, vol 70. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1998-8_24
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DOI: https://doi.org/10.1007/978-94-017-1998-8_24
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-6074-7
Online ISBN: 978-94-017-1998-8
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