TY - GEN

T1 - State-Resolved Transport Properties of Electronically Excited High-Temperature Flows behind Strong Shock Waves

AU - Istomin, V.A.

AU - Kustova, E/V/

AU - Oblapenko, G.P.

N1 - Istomin V.A., Kustova E.V., Oblapenko G.P. (2019) State-Resolved Transport Properties of Electronically Excited High-Temperature Flows Behind Strong Shock Waves. In: Sasoh A., Aoki T., Katayama M. (eds) 31st International Symposium on Shock Waves 1. ISSW 2017. Springer, Cham

PY - 2019/3/22

Y1 - 2019/3/22

N2 - In the present study, a theoretical model of state-resolved transport coefficients in electronically and vibrationally excited ionized gas mixtures is developed. High-temperature chemically reacting flows of a five-component partially ionized mixture N2/N/N+2/N+/e− are considered in the state-to-state approach. Rotational, vibrational, and electronic states of molecular species as well as electronic degrees of freedom of atoms, both neutral and ionized, are taken into account. Nonequilibrium reactions of ionization, dissociation, and transitions of electronic and vibrational energy are included in the kinetic scheme. The developed model is applied for evaluating transport properties in strongly nonequilibrium flows behind the plane shock wave under conditions characteristic for the spacecraft reentry from an interplanetary flight (Hermes and Fire II experiments). The range of temperature and the distance behind the shock where the contribution of electronic and vibrational degrees of freedom to the flow parameters is of importance are indicated, and the effect of vibrational and electronic excitation on transport coefficients is analyzed.

AB - In the present study, a theoretical model of state-resolved transport coefficients in electronically and vibrationally excited ionized gas mixtures is developed. High-temperature chemically reacting flows of a five-component partially ionized mixture N2/N/N+2/N+/e− are considered in the state-to-state approach. Rotational, vibrational, and electronic states of molecular species as well as electronic degrees of freedom of atoms, both neutral and ionized, are taken into account. Nonequilibrium reactions of ionization, dissociation, and transitions of electronic and vibrational energy are included in the kinetic scheme. The developed model is applied for evaluating transport properties in strongly nonequilibrium flows behind the plane shock wave under conditions characteristic for the spacecraft reentry from an interplanetary flight (Hermes and Fire II experiments). The range of temperature and the distance behind the shock where the contribution of electronic and vibrational degrees of freedom to the flow parameters is of importance are indicated, and the effect of vibrational and electronic excitation on transport coefficients is analyzed.

UR - https://link.springer.com/chapter/10.1007/978-3-319-91020-8_22

M3 - Conference contribution

SN - 9783319910192

SP - 201

EP - 209

BT - 31st International Symposium on Shock Waves 1

PB - Springer Nature

CY - Cham

T2 - 31st International Symposium on Shock Waves

Y2 - 9 July 2017 through 14 July 2017

ER -