ON CONTROL OF CONVECTION INTENSITY OF THE REACTING EQUILIBRIUM GAS

ON CONTROL OF CONVECTION INTENSITY OF THE REACTING EQUILIBRIUM GAS Full article

Journal

Computational Thermal Sciences
ISSN: 1940-2503

Output data

Year: 2019, Volume: 11, Number: 4, Article number : 297-314, Pages count :

Authors

Palymskiy I.B. ¹ , Fomin P.A. ² , Gharehdash S. ³

Affiliations

1	Siberian State University of Telecommunications and Information Sciences
2	Lavrentyev Institute of Hydrodynamics, SB RAS
3	School of Civil Engineering, University of Sydney, Sydney

Funding (2)

1	Российский фонд фундаментальных исследований	17-58-53100
2	Российский фонд фундаментальных исследований	15-08-05166

The Rayleigh-Benard convection for a chemical equilibrium gas with inert microparticles is considered in the Boussinesq approximation. The convection is shown to develop in accordance to two contradictory tendencies. On the one hand, continuous processes of recombination and dissociation in the gas mixture are responsible for the increase in the thermal extension coefficient, which decreases the critical Rayleigh number and leads to intensified convection. On the other hand, chemically inert microparticles in the gas mixture cause increased thermal diffusivity and, as a result, the critical Rayleigh number grows while the convection rate decreases with corresponding decreasing of Nusselt number and rms of temperature value.

Palymskiy I.B. , Fomin P.A. , Gharehdash S.
ON CONTROL OF CONVECTION INTENSITY OF THE REACTING EQUILIBRIUM GAS
Computational Thermal Sciences. 2019. V.11. N4. 297-314 . РИНЦ

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