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传热学
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ISSN 打印: 1064-2285
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传热学

DOI: 10.1615/HeatTransRes.v43.i2.20
pages 109-122

MODEL OF EVOLUTIONOF FINITE-AMPLITUDE PERTUBATIONS IN A TWO-PHASE REACTIVE SYSTEM

Oleg Sharypov
Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
Igor S. Anufriev
Kutateladze Institute of Thermophysics, Siberian Branch of Russian Academy of Sciences, 1 Lavrentyev Ave, Novosibirsk, 630090, Russia

ABSTRACT

The dynamics of weak finite-amplitude perturbations in a homogeneous gas suspension (reactive gas mixture and chemically inert solid particles) is considered. A weakly nonlinear model takes into account the chemical kinetics−gasdynamics interaction and dissipative properties. The influence of interphase heat and momentum exchange on the stability of the homogeneous state of a system is analyzed. For the model kinetics of the reaction, numerical solutions of the evolution equation are obtained in the form of steady self-oscillations. A sharp increase in the characteristic period of self-oscillations and instability suppression in gas suspension with small-size particles are described.


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