Role of vortex structures in excitation of condensed system self-oscillatory burning

被引：0
|
作者：
V. P. Samsonov
E. Y. Murunov
M. V. Alexeev
机构：
[1] Surgut State University,
来源：
Technical Physics | 2008年 / 53卷
关键词：
47.32.cd;
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摘要：
The effect of free convection and vortex structures arising near the “singing” flame of a gasoline blow torch on excitation of thermal self-oscillations in a resonator tube is studied experimentally. A technique for measuring the oscillation amplitude of the gas column is suggested. It is found that the excitation of acoustic oscillations decreases the height of the singing flame and the mass velocity of burning but raises the gasoline combustion efficiency. The variation of the temperature field of the singing flame over an oscillation cycle is studied by digital photometry. Hysteretic dependences of the acoustic oscillation amplitude on the thermal power of the gasoline diffusion flame are obtained. A mechanism explaining the influence of vortex structures on the self-oscillatory mode of burning in condensed systems is discussed.
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页码：991 / 997
页数：6
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