A PIV-based system has been set-up for the simultaneous measurement of the local burning velocity of premixed flames and the flame stretch due to the flame front curvature and the incoming flow strain rate. For moderately short jet flames, these measurements allow an indirect determination of the Markstein length, according to Clavin and Joulin (C–J) theory. For tall flames, the flame curvature becomes relatively large in a region around the tip where the C–J theory breaks down. However, our experiments confirm the appearance of a new linear relation between burning velocity and curvature at the flame tip. This relation defines a new proportionality factor which is probably associated to the evolution from rounded tips to slender tips when the jet velocity is increased.
Gabriel García-Soriano 1; José Luis Castillo 1; Francisco J. Higuera 2; Pedro L. García-Ybarra 1
@article{CRMECA_2012__340_11-12_789_0,
author = {Gabriel Garc{\'\i}a-Soriano and Jos\'e Luis Castillo and Francisco J. Higuera and Pedro L. Garc{\'\i}a-Ybarra},
title = {Local burning velocity in a {Bunsen} jet flame},
journal = {Comptes Rendus. M\'ecanique},
pages = {789--796},
publisher = {Elsevier},
volume = {340},
number = {11-12},
year = {2012},
doi = {10.1016/j.crme.2012.10.027},
language = {en},
}
TY - JOUR AU - Gabriel García-Soriano AU - José Luis Castillo AU - Francisco J. Higuera AU - Pedro L. García-Ybarra TI - Local burning velocity in a Bunsen jet flame JO - Comptes Rendus. Mécanique PY - 2012 SP - 789 EP - 796 VL - 340 IS - 11-12 PB - Elsevier DO - 10.1016/j.crme.2012.10.027 LA - en ID - CRMECA_2012__340_11-12_789_0 ER -
%0 Journal Article %A Gabriel García-Soriano %A José Luis Castillo %A Francisco J. Higuera %A Pedro L. García-Ybarra %T Local burning velocity in a Bunsen jet flame %J Comptes Rendus. Mécanique %D 2012 %P 789-796 %V 340 %N 11-12 %I Elsevier %R 10.1016/j.crme.2012.10.027 %G en %F CRMECA_2012__340_11-12_789_0
Gabriel García-Soriano; José Luis Castillo; Francisco J. Higuera; Pedro L. García-Ybarra. Local burning velocity in a Bunsen jet flame. Comptes Rendus. Mécanique, Out of Equilibrium Dynamics, Volume 340 (2012) no. 11-12, pp. 789-796. doi : 10.1016/j.crme.2012.10.027. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2012.10.027/
[1] Non Steady Flame Propagation, Pergamon Press, 1964
[2] Theory of flame-front stability, J. Fluid Mech., Volume 10 (1961), pp. 80-100
[3] On the stability of laminar flame, J. Mécanique, Volume 1 (1962), pp. 293-312
[4] Premixed combustion and gasdynamics, Annu. Rev. Fluid Mech., Volume 26 (1994), pp. 321-352
[5] Combustion Theory, Benjamin Cummings, 1985
[6] Flames as gasdynamic discontinuities, J. Fluid Mech., Volume 124 (1982), pp. 239-259
[7] Premixed flames in large scale and high intensity turbulent flow, J. Phys. Lett., Volume 44 (1983) (L-1–L-12)
[8] Effects of molecular diffusion and of thermal expansion on the structure and dynamics of premixed flames in turbulent flows of large scale and low intensity, J. Fluid Mech., Volume 116 (1982), pp. 251-282
[9] Influence of hydrodynamics and diffusion upon the stability limits of laminar premixed flames, J. Fluid Mech., Volume 124 (1982), pp. 219-237
[10] The effect of viscosity on hydrodynamic stability of a plane flame front, Combust. Sci. Technol., Volume 29 (1982), pp. 207-224
[11] The influence of the temperature dependence of diffusivities on the dynamics of flame fronts, J. Mec. Theor. Appl., Volume 2 (1983), pp. 245-263
[12] Soret and dilution effects on premixed flames, Combust. Sci. Technol., Volume 42 (1984), pp. 87-109
[13] Effect of variable heat loss intensities on the dynamics of a premixed flame front, Combust. Flame, Volume 68 (1987), pp. 69-71
[14] Curved and stretched flames: the two Markstein numbers, J. Fluid Mech., Volume 686 (2011), pp. 187-217
[15] Curvature and velocity of methane-air Bunsen flame tips, Flow Turbul. Combust., Volume 89 (2012), pp. 173-182
[16] Flame speed measurements at the tip of a slot burner: Effects of flame curvature and hydrodynamic stretch, Proc. Combust. Inst., Volume 23 (1990), pp. 455-461
[17] Instantaneous velocity measurements in laminar and turbulent premixed flames using on-line PIV, Combust. Sci. Technol., Volume 106 (1995), pp. 239-265
[18] Aerodynamics of a slender axisymmetric Bunsen flame with large gas expansion, Combust. Flame, Volume 156 (2009), pp. 1063-1067
[19] Effects of fresh gas velocity and thermal expansion on the structure of a Bunsen flame tip, Combust. Flame, Volume 157 (2010), pp. 1586-1593
[20] On flame stretch, Combust. Sci. Technol., Volume 31 (1983), pp. 169-181
[21] A mathematical description of open and closed flame tips, Combust. Sci. Technol., Volume 20 (1979), pp. 33-40
[22] The fluid mechanics of flame tips, J. Fluid Mech., Volume 131 (1983), pp. 341-361
[23] Direct and indirect measurements of Markstein numbers of premixed flames, Combust. Flame, Volume 82 (1990), pp. 298-311
[24] The velocity of a premixed flame as a function of the flame stretch: an experimental study, Combust. Flame, Volume 82 (1990), pp. 361-375
[25] Determination of Markstein numbers in counterflow premixed flames, Combust. Flame, Volume 130 (2002), pp. 112-122
[26] Markstein numbers in counterflow, methane- and propane-air flames: a computational study, Combust. Flame, Volume 130 (2002), pp. 123-136
[27] The structure of Bunsen flames, J. Chem. Phys., Volume 62 (1975), pp. 638-643
Cited by Sources:
Comments - Policy