Hostname: page-component-7479d7b7d-pfhbr Total loading time: 0 Render date: 2024-07-10T15:21:34.790Z Has data issue: false hasContentIssue false

One-dimensional vibratory instability of planar flames propagating in tubes

Published online by Cambridge University Press:  26 April 2006

Paul Clavin
Affiliation:
Laboratoire de Recherche en Combustion, URA 1117, CNRS & Université de Provence, Service 252, Centre St Jérome, 13397 Marseille cedex 13, France
Pierre Pelcé
Affiliation:
Laboratoire de Recherche en Combustion, URA 1117, CNRS & Université de Provence, Service 252, Centre St Jérome, 13397 Marseille cedex 13, France
Longting He
Affiliation:
Laboratoire de Recherche en Combustion, URA 1117, CNRS & Université de Provence, Service 252, Centre St Jérome, 13397 Marseille cedex 13, France

Abstract

A complete analysis of the one-dimensional vibratory instability of planar flames of premixed gases propagating in tubes is provided. The driving mechanism results from unsteady coupling between flame structure and acoustic waves through temperature fluctuations. In certain conditions, the strength of such an instability will be proved to be sufficiently strong to produce large-amplitude fluctuations as soon as the flame has travelled a distance of the order of the acoustic wavelength. Stability limits and total amplification of an initial perturbation are computed in the framework of the simple flame mode of a one-step exothermic reaction governed by an Arrhenius law with an activation energy much larger than the thermal energy. Diffusive and thermal effects within the flame are included with a Lewis number different from unity. Damping mechanisms associated with viscous and thermal dissipation at the walls, as well as with loss of acoustic energy by sound radiation from the open end of the tube, are retained. In ordinary conditions, for a reactive mixture with an effective Lewis number close to unity, the predicted instability is weak. In the framework of the simplified flame model used here, islands of strong instabilities are predicted to occur at low Mach numbers for Lewis numbers larger than unity.

Type
Research Article
Copyright
© 1990 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bailey, J. J. 1957 A type of flame-excited oscillation in a tube. Trans. ASME E: J. Appl. Mech. 24, 333339.Google Scholar
Dunlap, R. A. 1950 Resonance of flame in a parallel-walled combustion chamber. Aeronautical Research Center, University of Michigan, Project MX833, Rep. UMM-43.Google Scholar
Jackson, T. L. & Kapila, A. K. 1986 Effect of thermal expansion on the stability of plane, freely propagating flames. Part II: Incorporation of gravity and heat loss. Combust. Sci. Tech. 49, 305317.Google Scholar
Joulin, G. & Clavin, P. 1979 Linear stability analysis of nonadiabatic flames: diffusional thermal model. Combust. Flame 35, 139153.Google Scholar
Kaskan, W. E. 1953 An investigation of vibrating flames. Fourth Symp. on Combustion, pp. 575591. Baltimore: Williams and Wilkins.
Kooker, D. E. 1979 Transient laminar flame propagation confined premixed gases: Numerical predictions. Seventeenth Symp. on Combustion, pp. 13291339. Baltimore: Williams and Wilkins.
Landau, L. D. & Lifshitz, E. M. 1959 Fluid Mechanics. Pergamon.
Mallard, E. E. & Le Chatelier, H. 1883 Recherches expérimentelles et théoriques sur la combustion des mélanges gazeux explosif. Annls Mines, Paris, Partie Scientifique et Technique, Series 8, No. 4, p. 274.
Markstein, G. H. 1964 Nonsteady Flame Propagation. Pergamon.
McIntosh, A. C. 1986 The effect of upstream acoustic forcing and feedback on the stability and resonance of anchored flames. Combust. Sci. Tech. 49, 143167.Google Scholar
Nicoli, C. & Pelcé, P. 1989 One-dimensional model for the Rijke tube. J. Fluid Mech. 202, 8396.Google Scholar
Pelcé, P. & Clavin, P. 1982 Influence of hydrodynamics and diffusion upon the stability of premixed flames. J. Fluid Mech. 124, 219237.Google Scholar
Putnam, A. A. 1964 Experimental and theoretical studies of combustion oscillations. In Nonsteady Flame Propagation (ed. G. H. Markstein). Pergamon.
Quinard, J., Searby, G. & Boyer, L. 1985 Stability limits and critical size of structures in premixed flames. Prog. Astronaut. Aeronaut. 95, 129141.Google Scholar
Rayleigh, Lord 1945 The Theory of Sound, Vol. II. Dover.
Sivashinsky, G. I. 1977 Nonlinear analysis of hydrodynamic instability in laminar flames. I. Derivation of basic equations. Acta Astronautica 4, 11771206.Google Scholar
Strehlow, R. A. 1979 Fundamentals of Combustion. Robert E. Krieger.
van Harten, A., Kapila, A. K. & Matkowsky, B. J. 1984 Acoustic coupling of flames. SIAM J. Appl. Maths. 44, 982995.Google Scholar
Zel'dovich, Ya. B. & Frank-Kamenetskii, D. A. 1938 A, Theory of thermal propagation of flame. Acta Physiochimica URSS IX, 341350.Google Scholar
Zel'dovich, Ya. B., Istratov, A. G., Kidin, N. I. & Librovich, V. B. 1980 Flame propagation in tubes: Hydrodynamics and stability. Combust. Sci. Tech. 24, 113.Google Scholar