Research output: Contribution to journal › Article
Non-equilibrium kinetics, diffusion and heat transfer in shock heated flows of N2/N and O2/O mixtures. / Kunova, O.; Kustova, E.; Mekhonoshina, M.; Nagnibeda, E.
In: Chemical Physics, Vol. 463, 2015, p. 70-81.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Non-equilibrium kinetics, diffusion and heat transfer in shock heated flows of N2/N and O2/O mixtures
AU - Kunova, O.
AU - Kustova, E.
AU - Mekhonoshina, M.
AU - Nagnibeda, E.
PY - 2015
Y1 - 2015
N2 - © 2015 Elsevier B.V.In this paper, the influence of vibrational and dissociation kinetics on heat transfer and diffusion in non-equilibrium flows of N2/N and O2/O mixtures in the relaxation zone behind shock waves is studied on the basis of the state-to-state and one-temperature kinetic theory approaches. The results of calculations of vibrational level populations ni, gas temperature T, total energy flux q, diffusion velocities of molecules at different vibrational states Vi and atoms Va in the relaxation zone behind a shock front are presented for the free stream Mach numbers M = 18, 15, 10. The contribution of different dissipative processes to the total energy flux is evaluated for various flow conditions. Characteristic features of non-equilibrium kinetics, diffusion and energy transfer in two considered mixtures are discussed. The impact of vibrational excitation of N2 and O2 molecules in the free stream on a relaxation zone structure and transport properties behind a shock is shown.
AB - © 2015 Elsevier B.V.In this paper, the influence of vibrational and dissociation kinetics on heat transfer and diffusion in non-equilibrium flows of N2/N and O2/O mixtures in the relaxation zone behind shock waves is studied on the basis of the state-to-state and one-temperature kinetic theory approaches. The results of calculations of vibrational level populations ni, gas temperature T, total energy flux q, diffusion velocities of molecules at different vibrational states Vi and atoms Va in the relaxation zone behind a shock front are presented for the free stream Mach numbers M = 18, 15, 10. The contribution of different dissipative processes to the total energy flux is evaluated for various flow conditions. Characteristic features of non-equilibrium kinetics, diffusion and energy transfer in two considered mixtures are discussed. The impact of vibrational excitation of N2 and O2 molecules in the free stream on a relaxation zone structure and transport properties behind a shock is shown.
U2 - 10.1016/j.chemphys.2015.10.004
DO - 10.1016/j.chemphys.2015.10.004
M3 - Article
VL - 463
SP - 70
EP - 81
JO - Chemical Physics
JF - Chemical Physics
SN - 0301-0104
ER -
ID: 3975029