The influence of state-to-state kinetics on diffusion and heat transfer behind shock waves

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5 Citations (Scopus)

Abstract

In the paper, the influence of vibrational and chemical kinetics on heat transfer and diffusion in hypersonic flows of N2/N mixture in the relaxation zone behind shock waves is studied on the basis of the state-to-state kinetic theory approach. 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 number M = 10; 15. The contribution of different dissipative processes to the total energy flux is estimated for various flow conditions. The impact of non-equilibrium vibrational distributions in the free stream on molecular level populations and transport properties in the relaxation zone is shown.
Original languageEnglish
Pages (from-to)1202-1209
JournalAIP Conference Proceedings
Volume1628
Issue number1
DOIs
Publication statusPublished - 2014

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shock waves
heat transfer
free flow
kinetics
hypersonics
shock fronts
gas temperature
kinetic theory
Mach number
vibrational states
reaction kinetics
transport properties
energy
atoms
molecules

Cite this

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title = "The influence of state-to-state kinetics on diffusion and heat transfer behind shock waves",
abstract = "In the paper, the influence of vibrational and chemical kinetics on heat transfer and diffusion in hypersonic flows of N2/N mixture in the relaxation zone behind shock waves is studied on the basis of the state-to-state kinetic theory approach. 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 number M = 10; 15. The contribution of different dissipative processes to the total energy flux is estimated for various flow conditions. The impact of non-equilibrium vibrational distributions in the free stream on molecular level populations and transport properties in the relaxation zone is shown.",
author = "O.V. Kunova and E.V. Kustova and M.A. Mekhonoshina and E.A. Nagnibeda",
year = "2014",
doi = "10.1063/1.4902729",
language = "English",
volume = "1628",
pages = "1202--1209",
journal = "AIP Conference Proceedings",
issn = "0094-243X",
publisher = "American Institute of Physics",
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TY - JOUR

T1 - The influence of state-to-state kinetics on diffusion and heat transfer behind shock waves

AU - Kunova, O.V.

AU - Kustova, E.V.

AU - Mekhonoshina, M.A.

AU - Nagnibeda, E.A.

PY - 2014

Y1 - 2014

N2 - In the paper, the influence of vibrational and chemical kinetics on heat transfer and diffusion in hypersonic flows of N2/N mixture in the relaxation zone behind shock waves is studied on the basis of the state-to-state kinetic theory approach. 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 number M = 10; 15. The contribution of different dissipative processes to the total energy flux is estimated for various flow conditions. The impact of non-equilibrium vibrational distributions in the free stream on molecular level populations and transport properties in the relaxation zone is shown.

AB - In the paper, the influence of vibrational and chemical kinetics on heat transfer and diffusion in hypersonic flows of N2/N mixture in the relaxation zone behind shock waves is studied on the basis of the state-to-state kinetic theory approach. 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 number M = 10; 15. The contribution of different dissipative processes to the total energy flux is estimated for various flow conditions. The impact of non-equilibrium vibrational distributions in the free stream on molecular level populations and transport properties in the relaxation zone is shown.

U2 - 10.1063/1.4902729

DO - 10.1063/1.4902729

M3 - Conference article

VL - 1628

SP - 1202

EP - 1209

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

SN - 0094-243X

IS - 1

ER -