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Flame stabilization with a tubular flame
Proceedings of the Combustion Institute, 2005Abstract A new technique to stabilize a flame in a high-velocity stream with use of a tubular flame has been proposed. To elucidate the validity of this technique, an experiment has been conducted by mounting a tubular flame burner on the nozzle. Flame stability limits and temperature distributions around the burner port have been determined, and ...
Daisuke Shimokuri, Satoru Ishizuka
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The Physics of Fluids, 1961
Markstein theory of stability of laminar flames is shown to be supported by experimental results on oscillated laminar propane-air flames. Disturbances in appropriate wavelength ranges grow and distort while for other ranges disturbances are damped. These facts imply important restrictions on the nature of a turbulent flame and its interaction with the
Petersen, Russell E., Emmons, Howard W.
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Markstein theory of stability of laminar flames is shown to be supported by experimental results on oscillated laminar propane-air flames. Disturbances in appropriate wavelength ranges grow and distort while for other ranges disturbances are damped. These facts imply important restrictions on the nature of a turbulent flame and its interaction with the
Petersen, Russell E., Emmons, Howard W.
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Nonlinear equation for curved nonstationary flames and flame stability
Physical Review E, 1999A time-dependent nonlinear equation for a nonstationary curved flame front of an arbitrary expansion coefficient is derived under the assumptions of a small but finite flame thickness and weak nonlinearity. On the basis of the derived equation, stability of two-dimensional curved stationary flames propagating in tubes with ideally adiabatic and slip ...
V V, Bychkov +2 more
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On the Stability of Nonadiabatic Flames
SIAM Journal on Applied Mathematics, 1981A linear stability analysis is carried out for the cellular instability of a nonadiabatic downward-propagating premixed flame. It is shown that if the molecular weight of the deficient reactant is sufficiently small, then an increase in heat loss may lead to destabilization of an adiabatically stable flame (i.e., a flame which is stable in the absence ...
Sivashinsky, G. I., Matkowsky, B. J.
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Combustion Science and Technology, 1973
(1973). Diffusion Flame Stability. Combustion Science and Technology: Vol. 7, No. 6, pp. 241-243.
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(1973). Diffusion Flame Stability. Combustion Science and Technology: Vol. 7, No. 6, pp. 241-243.
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Flame Stabilization Through Forcing: Velocity Measurements
Combustion Science and Technology, 1998The differences in the flow field of an unforced unstable flame and a forced stable flame was examined through velocity and temperature measurements. Measurements were made in open atmosphere with an air-assist atomizing nozzle consisting of a central liquid-fuel (ethanol) stream, and a swirling primary air stream.
Jun Li, Sumanta Acharya
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The Influence of Premixed Combustion Flame Stabilizer Geometry on Flame Stability and Emissions
Journal of Engineering for Power, 1981Premixed combustion systems for gas turbines offer the possibility of low-pollution, high-combustion efficiency and good temperature distribution. They form a basis by which other well-mixed combustion systems may be assessed. The ultimate objective of this work is the development of nonpremixed rapid mixing combustion systems.
N. A. Al Dabbagh, G. E. Andrews
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1992
M. Sichel initiated the discussion by observing that at least in gases, steady one-dimensional detonations are seldom observed. Invariably, real detonations have a cellular structure.
A. Kapila, M. Matalon
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M. Sichel initiated the discussion by observing that at least in gases, steady one-dimensional detonations are seldom observed. Invariably, real detonations have a cellular structure.
A. Kapila, M. Matalon
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Flame Stabilization Using Tri-Vane Flame Stabilizer
Flame stabilization means stabilizing the flame i.e., proper mixing of fuel and oxidizer. It is a critical aspect in the design and operation of combustion systems, particularly in jet engines, afterburners, and industrial burners. This study explores the concept of flame stabilization using a Tri-Vane Flame Stabilizer, a geometric device designed to ...Aakash Das Tatma, Vikash Kumar Mahto
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Experimental studies of flame stability limits of biogas flame
Energy Conversion and Management, 2012Abstract Flame stability of premixed biogas flame for Reference Test Burner (RTB) was investigated. In this study, six kinds of test gases were used to simulate biogas in which CO2 volume fraction varied from 30% to 45%. A series of experiments were conducted on two RTBs with different port diameters and at different outlet unburned mixture ...
Wanneng Dai +4 more
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