Introduction to the Special Section on Ab Initio Approaches for Nonequilibrium Flows

Alexeenko, Alina; Gallis, Michael A.

doi:10.2514/1.T5602

Title: Introduction to the Special Section on Ab Initio Approaches for Nonequilibrium Flows

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Abstract

Modeling of chemical and ionization reactions at the extreme conditions of upper-atmosphere hypersonic flow has been critical for spacecraft design from the Apollo era to the present because chemical activity in the flow reduces heat transfer. Nitrogen, which behaves as an inert gas in ambient flows, becomes chemically active under conditions of hypersonic reentry (-10,000 K). Atmospheric chemical reactions during hypersonic reentry are dominated by dissociation of diatomic nitrogen and oxygen molecules and exchange reactions involving diatomic molecules and single atoms. At higher temperatures, ionization also occurs.

Authors:

Alexeenko, Alina ^[1]; Gallis, Michael A. ^[2]

Purdue Univ., West Lafayette, IN (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Publication Date:: 2018-10-01

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1498481

Report Number(s):: SAND-2018-12612J
Journal ID: ISSN 0887-8722; 668738

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Thermophysics and Heat Transfer

Additional Journal Information:: Journal Volume: 32; Journal Issue: 4; Journal ID: ISSN 0887-8722

Publisher:: American Institute of Aeronautics and Astronautics, Inc.

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Alexeenko, Alina, and Gallis, Michael A. Introduction to the Special Section on Ab Initio Approaches for Nonequilibrium Flows.  United States: N. p., 2018. 
Web.  doi:10.2514/1.T5602.

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                    Alexeenko, Alina, & Gallis, Michael A. Introduction to the Special Section on Ab Initio Approaches for Nonequilibrium Flows.  United States.  https://doi.org/10.2514/1.T5602

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                    Alexeenko, Alina, and Gallis, Michael A. Mon .  
"Introduction to the Special Section on Ab Initio Approaches for Nonequilibrium Flows".  United States.  https://doi.org/10.2514/1.T5602.  https://www.osti.gov/servlets/purl/1498481.

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@article{osti_1498481,

  title        = {Introduction to the Special Section on Ab Initio Approaches for Nonequilibrium Flows},

  author       = {Alexeenko, Alina and Gallis, Michael A.},

  abstractNote = {Modeling of chemical and ionization reactions at the extreme conditions of upper-atmosphere hypersonic flow has been critical for spacecraft design from the Apollo era to the present because chemical activity in the flow reduces heat transfer. Nitrogen, which behaves as an inert gas in ambient flows, becomes chemically active under conditions of hypersonic reentry (-10,000 K). Atmospheric chemical reactions during hypersonic reentry are dominated by dissociation of diatomic nitrogen and oxygen molecules and exchange reactions involving diatomic molecules and single atoms. At higher temperatures, ionization also occurs.},

  doi          = {10.2514/1.T5602},

  journal      = {Journal of Thermophysics and Heat Transfer},

  number       = 4,

  volume       = 32,

  place        = {United States},

  year         = {2018},

  month        = {10}

}

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