Vibrationally-Specific Collisional-Radiative Model for Nonequilibrium Air Plasmas

Chauveau, Sophie; Laux, Christophe O.; Kelley, J. Daniel; Kruger, C.H.

doi:10.2514/6.2002-2229

Cited by 11 publications

(10 citation statements)

References 25 publications

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“…Because many reaction rates depend on the vibrational population distribution of molecules in the ground state [resonant molecular impact reactions and or in the excited electronic states (inverse predissociation of N 2 (B, C) described by Laux [2002]), it now appears necessary for future planetary missions on Titan, Mars, or Venus to develop an electronic and vibrational state‐specific CR model of CN/N 2 following the approach of Pierrot et al [1998], Capitelli et al [2002], and Chauveau et al [2003] for air plasmas.…”

Section: Discussionmentioning

confidence: 99%

Nonequilibrium radiative heat flux modeling for the Huygens entry probe

et al. 2006

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[1] An electronic collisional-radiative model is proposed to predict the nonequilibrium populations and the radiation of the excited electronic states CN(A, B) and N 2 (A, B, C) during the entry of the Huygens probe into the atmosphere of Titan. The model is loosely coupled with flow solvers using a Lagrangian method. First, the model was tested against measurements obtained with the shock-tube of NASA Ames Research Center. Then, the model was applied to the simulation of Huygen's entry. Our simulations predict that the population of the CN(B) state is lower than the Boltzmann population by a factor 40 at trajectory time t = 165 s and by a factor 2 at t = 187 s and that the population of the CN(A) state remains close to the Boltzmann population for both trajectory points. The radiative heat fluxes, driven by the CN(A, B) states, are lower than predictions based on the Boltzmann populations by a factor 15 at t = 165 s and a factor 2 at t = 187 s.

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Section: Discussionmentioning

confidence: 99%

Nonequilibrium radiative heat flux modeling for the Huygens entry probe

et al. 2006

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“…This model was subsequently extended to air plasmas [13], but these extensions will not presented because the focus of the present paper is on modeling a recombining nitrogen plasma. We give below an overview of the nitrogen CR model and of its capabilities.…”

Section: Nitrogen Cr Modelmentioning

confidence: 99%

State-to-state modeling of a recombining nitrogen plasma experiment

2012

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“…[15]). Recently, several kinetic schemes have been proposed [16][17][18] for discharge conditions at high gas temperatures, up to 6000 K. A kinetic scheme used in this work includes processes with participation of…”

Section: The Modelmentioning

confidence: 99%

Modelling of low-current discharges in atmospheric-pressure air taking account of non-equilibrium effects

Benilov

Naidis²

2003

J. Phys. D: Appl. Phys.

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A model of stationary direct current discharges in atmospheric-pressure air is developed that accounts for deviation of plasma state from the local thermodynamic equilibrium. It is shown that at the current range 0.01-0.1 A a change in the dominant ionization mechanism takes place, from ionization by electron impact at low currents to associative ionization in atomic collisions at high currents. Results of the calculation of discharge parameters over a wide current range are presented. Calculated plasma parameters agree with the available experimental data.

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Vibrationally-Specific Collisional-Radiative Model for Nonequilibrium Air Plasmas

Cited by 11 publications

References 25 publications

Nonequilibrium radiative heat flux modeling for the Huygens entry probe

Nonequilibrium radiative heat flux modeling for the Huygens entry probe

State-to-state modeling of a recombining nitrogen plasma experiment

Modelling of low-current discharges in atmospheric-pressure air taking account of non-equilibrium effects

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