Validity of Eucken formula and Stokes’ viscosity relation in high-temperature electronically excited gases

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6 Citations (Scopus)

Abstract

In the present work we evaluate the accuracy of the Eucken formula and Stokes’ viscosity relation in high temperature non-equilibrium air species with electronic excitation. The thermal conductivity coefficient calculated using the exact kinetic theory methods is compared with that obtained applying approximate formulas in the temperature range 200-20000 K. A modification of the Eucken formula providing a good agreement with exact calculations is proposed. It is shown that the Stokes viscosity relation is not valid in electronically excited monoatomic gases at temperatures higher than 2000 K.
Original languageEnglish
Pages (from-to)1229-1236
JournalAIP Conference Proceedings
Volume1628
Issue number1
DOIs
Publication statusPublished - 2014

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viscosity
gases
kinetic theory
thermal conductivity
air
coefficients
electronics
excitation
temperature

Cite this

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title = "Validity of Eucken formula and Stokes’ viscosity relation in high-temperature electronically excited gases",
abstract = "In the present work we evaluate the accuracy of the Eucken formula and Stokes’ viscosity relation in high temperature non-equilibrium air species with electronic excitation. The thermal conductivity coefficient calculated using the exact kinetic theory methods is compared with that obtained applying approximate formulas in the temperature range 200-20000 K. A modification of the Eucken formula providing a good agreement with exact calculations is proposed. It is shown that the Stokes viscosity relation is not valid in electronically excited monoatomic gases at temperatures higher than 2000 K.",
author = "V.A. Istomin and E.V. Kustova and M.A. Mekhonoshina",
year = "2014",
doi = "10.1063/1.4902732",
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journal = "AIP Conference Proceedings",
issn = "0094-243X",
publisher = "American Institute of Physics",
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TY - JOUR

T1 - Validity of Eucken formula and Stokes’ viscosity relation in high-temperature electronically excited gases

AU - Istomin, V.A.

AU - Kustova, E.V.

AU - Mekhonoshina, M.A.

PY - 2014

Y1 - 2014

N2 - In the present work we evaluate the accuracy of the Eucken formula and Stokes’ viscosity relation in high temperature non-equilibrium air species with electronic excitation. The thermal conductivity coefficient calculated using the exact kinetic theory methods is compared with that obtained applying approximate formulas in the temperature range 200-20000 K. A modification of the Eucken formula providing a good agreement with exact calculations is proposed. It is shown that the Stokes viscosity relation is not valid in electronically excited monoatomic gases at temperatures higher than 2000 K.

AB - In the present work we evaluate the accuracy of the Eucken formula and Stokes’ viscosity relation in high temperature non-equilibrium air species with electronic excitation. The thermal conductivity coefficient calculated using the exact kinetic theory methods is compared with that obtained applying approximate formulas in the temperature range 200-20000 K. A modification of the Eucken formula providing a good agreement with exact calculations is proposed. It is shown that the Stokes viscosity relation is not valid in electronically excited monoatomic gases at temperatures higher than 2000 K.

U2 - 10.1063/1.4902732

DO - 10.1063/1.4902732

M3 - Conference article

VL - 1628

SP - 1229

EP - 1236

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

SN - 0094-243X

IS - 1

ER -