Journal of Engineering Physics and Thermophysics
is a translation of Inzhenerno-fizicheskii Zhurnal,
a publication of the Academic Scientific Complex
"A. V. Luikov Heat and Mass Transfer Institute"
of the National Academy of Sciences of Belarus
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the Publisher
OSCILLATORY MODES OF GAS MIXTURE COMBUSTION
IN TUBES OF SMALL DIAMETER
O. S. Rabinovich , M. A. Silenkov ,
and G. A. Fateev
UDC 536.46
Oscillatory modes of combustion of a propane-air mixture
in small-diameter tubes ( 3-7 mm), hollow or filled with
an inert porous medium, with external local heating are
studied experimentally. The type of oscillations of
the flame front studied differs qualitatively from
the oscillations resulting from acoustic resonance on
the tube eigenfrequency. The oscillatory process consists
of the following stages: ignition in the heated portion
of the tube, flame propagation toward the gas flow, flame
extinction due to heat exchange of the gas with the cold
walls and the porous medium. Experimental dependences of
the frequency of the oscillations on the gas flow rate
are obtained.
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