On the Problem of Control of the Amplitude of Self-Oscillations of a Singing Flame

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The character of change in the amplitude of self-oscillations of the flame in a combustion chamber, which are excited as a result of the phenomenological delay of combustion of the fuel in it, with variation of the chambers’s wave resistance and outflow of the combustion products at a constant pressure through a throttling orifice and a converging nozzle has been determined. It has been established that when the combustion products fl ow out through the converging nozzle, the viscous-friction resistance decreases with increase in the mass fl ow rate of the combustion products. This leads to instability of the steady-state combustion mode.

Keywords

combustion chamber fuel-combustion delay self-oscillations limiting cycle negative resistance singing flame 
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© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Institute of Technical ThermophysicsNational Academy of Sciences of UkraineKievUkraine
  2. 2.Institute for Entrepreneurship “Strategy,”Zheltye VodyUkraine

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