This paper reviews the electron- and heavy-particle impact processes governing the population/depletion of the states of N, O, N 2 , and N 2 + , which can be significantly affected by nonequilibrium conditions while strongly radiating in lunar-return shock layers. The collisional-radiative model developed in this work includes electron-impact excitation, ionization, heavy-particle impact excitation, vibration–electron, vibration–translation, dissociation and bound–bound radiative mechanisms. The available experimental and theoretical reaction rates governing these processes were critically reviewed to produce a reliable set of rate constants. The collisional-radiative model was then applied to typical nonequilibrium thermodynamic conditions encountered during lunar-return Earth reentry. The effect of heavy-particle impact processes is discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Air Collisional-Radiative Modeling with Heavy-Particle Impact Excitation Processes


    Contributors:
    Lemal, A. (author) / Jacobs, C. M. (author) / Perrin, M.-Y. (author) / Laux, C. O. (author) / Tran, P. (author) / Raynaud, E. (author)

    Published in:

    Publication date :

    2015-02-26


    Size :

    14 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Collisional-Radiative Modeling Behind Shock Waves in Nitrogen

    Annaloro, Julien / Bultel, Arnaud / Omaly, Pierre | AIAA | 2014


    Collisional-radiative modeling of nonequilibrium effects in nitrogen plasmas

    Pierrot, Laurent / Yu, Lan / Gessman, Richard et al. | AIAA | 1999



    Collisional Radiative Modelling within CFD Codes

    Beck, J.C. / European Space Agency | British Library Conference Proceedings | 2011


    Collisional excitation of vinylidene (H2CC)

    Sharma, M.K. | Online Contents | 2014