Non-Equilibrium Supersonic CO2 Flows with Real Gas Effects near a Blunt Body

E. V. Kustova, E. A. Nagnibeda, Yu D. Shevelev, N. G. Syzranova

Research output

3 Citations (Scopus)

Abstract

The paper deals with the numerical simulation of a supersonic viscous flow containing CO2 molecules near a space body entering the Mars atmosphere. The gas dynamic equations in a shock layer are coupled to the equations of vibrational and chemical kinetics in the mixture CO 2/CO/O2/C/O using three theoretical models for CO 2 vibrational excitation. Threetemperature and two-temperature non-equilibrium approaches as well as the one-temperature thermal equilibrium model have been applied. A comparison of gas flow parameters and heat transfer calculated on the basis of different approximations is presented, and the effect of CO2 vibrational non-equilibrium is discussed. Transport coefficients in a flow are computed using rigorous kinetic theory algorithms which have been incorporated directly to the numerical schemes. The effect of bulk viscosity in a shock layer is studied.

Original languageEnglish
Pages (from-to)831-836
Number of pages6
JournalAIP Conference Proceedings
Volume1084
DOIs
Publication statusPublished - 13 Apr 2009
Event26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto
Duration: 20 Jul 200825 Jul 2008

Fingerprint

blunt bodies
shock layers
real gases
supersonic flow
Mars atmosphere
gas dynamics
viscous flow
kinetic theory
gas flow
reaction kinetics
transport properties
heat transfer
viscosity
temperature
kinetics
approximation
excitation
molecules
simulation

Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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abstract = "The paper deals with the numerical simulation of a supersonic viscous flow containing CO2 molecules near a space body entering the Mars atmosphere. The gas dynamic equations in a shock layer are coupled to the equations of vibrational and chemical kinetics in the mixture CO 2/CO/O2/C/O using three theoretical models for CO 2 vibrational excitation. Threetemperature and two-temperature non-equilibrium approaches as well as the one-temperature thermal equilibrium model have been applied. A comparison of gas flow parameters and heat transfer calculated on the basis of different approximations is presented, and the effect of CO2 vibrational non-equilibrium is discussed. Transport coefficients in a flow are computed using rigorous kinetic theory algorithms which have been incorporated directly to the numerical schemes. The effect of bulk viscosity in a shock layer is studied.",
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Non-Equilibrium Supersonic CO2 Flows with Real Gas Effects near a Blunt Body. / Kustova, E. V.; Nagnibeda, E. A.; Shevelev, Yu D.; Syzranova, N. G.

In: AIP Conference Proceedings, Vol. 1084, 13.04.2009, p. 831-836.

Research output

TY - JOUR

T1 - Non-Equilibrium Supersonic CO2 Flows with Real Gas Effects near a Blunt Body

AU - Kustova, E. V.

AU - Nagnibeda, E. A.

AU - Shevelev, Yu D.

AU - Syzranova, N. G.

PY - 2009/4/13

Y1 - 2009/4/13

N2 - The paper deals with the numerical simulation of a supersonic viscous flow containing CO2 molecules near a space body entering the Mars atmosphere. The gas dynamic equations in a shock layer are coupled to the equations of vibrational and chemical kinetics in the mixture CO 2/CO/O2/C/O using three theoretical models for CO 2 vibrational excitation. Threetemperature and two-temperature non-equilibrium approaches as well as the one-temperature thermal equilibrium model have been applied. A comparison of gas flow parameters and heat transfer calculated on the basis of different approximations is presented, and the effect of CO2 vibrational non-equilibrium is discussed. Transport coefficients in a flow are computed using rigorous kinetic theory algorithms which have been incorporated directly to the numerical schemes. The effect of bulk viscosity in a shock layer is studied.

AB - The paper deals with the numerical simulation of a supersonic viscous flow containing CO2 molecules near a space body entering the Mars atmosphere. The gas dynamic equations in a shock layer are coupled to the equations of vibrational and chemical kinetics in the mixture CO 2/CO/O2/C/O using three theoretical models for CO 2 vibrational excitation. Threetemperature and two-temperature non-equilibrium approaches as well as the one-temperature thermal equilibrium model have been applied. A comparison of gas flow parameters and heat transfer calculated on the basis of different approximations is presented, and the effect of CO2 vibrational non-equilibrium is discussed. Transport coefficients in a flow are computed using rigorous kinetic theory algorithms which have been incorporated directly to the numerical schemes. The effect of bulk viscosity in a shock layer is studied.

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