Abstract
Local flame structures of the turbulent premixed flame are discussed. The study is based on the hydrogen transport near the flame front using DNS data of three-dimensional H2-air turbulent premixed flame under the condition of u′ /S L = 1.74 and l/ δ L = 2.00. In DNS, a detailed kinetic mechanism including 12 reactive species and 27 elementary reactions was used to represent the H2-air reaction in turbulence. In a turbulent flow, the convection and diffusion effects on the hydrogen transport near the flame front depend on the curvature of the flame front. The convection effect is enhanced for the flame elements convex toward the burnt side, whereas the diffusion effect becomes dominant for the flame elements convex toward the unburned side.
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References
Baum, M., Poinsot, T. J., Haworth, D. C. and Darabiha, N. (1994) Direct Numerical Simulation of H2/O2/N2 Flames with Complex Chemistry in Two-dimensional Turbulent Flows, J. Fluid Mech., 281: 1–32.
Echekki, T. and Chen, J. H. (1996) Unsteady Strain Rate and Curvature Effects in Turbulent Premixed Methane-Air Flames, Combust. Flame, 106: 184–202.
Chen, J. H., Echekki, T. and Kollmann, W. (1998) The Mechanism of Two-Dimensional Pocket Formation in Lean Premixed Methane-Air
Flames with Implication to Turbulent Combustion, Combust. Flame,116:15–48.
Miyauchi, T., Tanahashi, M., Nada, Y. and Imamura, Y., (1997) Structure and Fractal Characteristics of H2-Air Turbulent Premixed Flames, Proc. 1st Asia-Pacific Conference on Combustion, pp. 278–281.
Tanahashi, M., Saito, T., Shimamura, M. and Miyauchi, T. (1999) Local Extinction and NO Formation in Methane-air Turbulent Premixed Flames, Proc. 2nd Asia-Pacific Conference on Combustion, pp.500503.
Tanahashi, M., Miyauchi, T. and Ikeda, J. (1997a) Scaling Law of Coherent Fine Scale Structure in Homogeneous Isotropic Turbulence, Proc. 11th Symp. Turbulent Shear Flows, Vol. 1, pp.4–17–4–22.
Tanahashi, M., Miyauchi, T. and Ikeda, J. (1999b) Simulation and Identification of Organized Structures in Flows, Proc. IUTAM Symposium (Eds. Sorensen, J. N., Hopfinger, E. J. and Auby, A.), p. 131, Kluwer Academic Publishers.
Tanahashi, M., Iwase, S., Uddin, Md. A. and Miyauchi, T. (1999c) Three-dimensional Features of Coherent Fine Sale Eddies in Turbulence, Turbulence and Shear Flow Phenomena - 1 (Proc. 1st Int. Symp. Turbulence and Shear Flow Phenomena), Eds. S. Banaerjee J. K. Eaton, p. 79, Begell House Inc.
Tanahashi, M., Fujimura, M. and Miyauchi, T. (2000) Coherent Fine Scale Eddies in Turbulent Premixed Flames. Proc. Combust. Inst., 28: 529–535.
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© 2002 Springer Science+Business Media Dordrecht
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Tanahashi, M., Ito, Y., Fujimura, M., Miyauchi, T. (2002). Local Flame Structure in Hydrogen-Air Turbulent Premixed Flames. 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_22
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DOI: https://doi.org/10.1007/978-94-017-1998-8_22
Publisher Name: Springer, Dordrecht
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