Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature

Thomas E. Schwartzentruber; Savio Poovathingal; Eric C. Stern

doi:10.2514/6.2015-3567

Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature

Thomas E. Schwartzentruber
, Savio Poovathingal
, Eric C. Stern

Producción científica: Conference contribution › revisión exhaustiva

2 Citas (Scopus)

Resumen

Recent computational results for gas-surface reactions including atomic level simulationsof oxygen-silica recombination and microstructure level simulations of carbon-basedablative surfaces are summarized. Atomic level calculations of oxygen-silica reactions showthe main recombination mechanism to be non-activated (associated with no energy barrier).This is in contradiction to current empirical models fit to limited experimental data. Forablative porous and non-porous TPS, where complex microstructure is important, thecapability to image a real material with micron scale resolution via x-ray micro-tomography, triangulate the surface, and directly simulate the gas-surface interaction with directsimulation Monte Carlo (DSMC) is demonstrated.

Idioma original	English
Título de la publicación alojada	20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
DOI	https://doi.org/10.2514/6.2015-3567
Estado	Published - 2015
Evento	20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015 - Glasgow, United Kingdom Duración: jul 6 2015 → jul 9 2015

Serie de la publicación

Nombre	20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015

Conference

Conference	20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
País/Territorio	United Kingdom
Ciudad	Glasgow
Período	7/6/15 → 7/9/15

Nota bibliográfica

Publisher Copyright:
© 2015, AIAA American Institute of Aeronautics and Astronautics. All rights reserved.

ASJC Scopus subject areas

Aerospace Engineering
Space and Planetary Science
Control and Systems Engineering

Acceder al documento

10.2514/6.2015-3567

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Schwartzentruber, T. E., Poovathingal, S., & Stern, E. C. (2015). Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature. En 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015 (20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015). https://doi.org/10.2514/6.2015-3567

Schwartzentruber, Thomas E. ; Poovathingal, Savio ; Stern, Eric C. / Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature. 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015. 2015. (20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015).

@inproceedings{9e90e4a3da45493daf2835e4d88c49ad,

title = "Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature",

abstract = "Recent computational results for gas-surface reactions including atomic level simulationsof oxygen-silica recombination and microstructure level simulations of carbon-basedablative surfaces are summarized. Atomic level calculations of oxygen-silica reactions showthe main recombination mechanism to be non-activated (associated with no energy barrier).This is in contradiction to current empirical models fit to limited experimental data. Forablative porous and non-porous TPS, where complex microstructure is important, thecapability to image a real material with micron scale resolution via x-ray micro-tomography, triangulate the surface, and directly simulate the gas-surface interaction with directsimulation Monte Carlo (DSMC) is demonstrated.",

author = "Schwartzentruber, \{Thomas E.\} and Savio Poovathingal and Stern, \{Eric C.\}",

note = "Publisher Copyright: {\textcopyright} 2015, AIAA American Institute of Aeronautics and Astronautics. All rights reserved.; 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015 ; Conference date: 06-07-2015 Through 09-07-2015",

year = "2015",

doi = "10.2514/6.2015-3567",

language = "English",

isbn = "9781624103209",

series = "20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015",

booktitle = "20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015",

}

Schwartzentruber, TE, Poovathingal, S & Stern, EC 2015, Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature. En 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015. 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015, 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015, Glasgow, United Kingdom, 7/6/15. https://doi.org/10.2514/6.2015-3567

Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature. / Schwartzentruber, Thomas E.; Poovathingal, Savio; Stern, Eric C.
20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015. 2015. (20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015).

Producción científica: Conference contribution › revisión exhaustiva

TY - GEN

T1 - Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature

AU - Schwartzentruber, Thomas E.

AU - Poovathingal, Savio

AU - Stern, Eric C.

PY - 2015

Y1 - 2015

N2 - Recent computational results for gas-surface reactions including atomic level simulationsof oxygen-silica recombination and microstructure level simulations of carbon-basedablative surfaces are summarized. Atomic level calculations of oxygen-silica reactions showthe main recombination mechanism to be non-activated (associated with no energy barrier).This is in contradiction to current empirical models fit to limited experimental data. Forablative porous and non-porous TPS, where complex microstructure is important, thecapability to image a real material with micron scale resolution via x-ray micro-tomography, triangulate the surface, and directly simulate the gas-surface interaction with directsimulation Monte Carlo (DSMC) is demonstrated.

AB - Recent computational results for gas-surface reactions including atomic level simulationsof oxygen-silica recombination and microstructure level simulations of carbon-basedablative surfaces are summarized. Atomic level calculations of oxygen-silica reactions showthe main recombination mechanism to be non-activated (associated with no energy barrier).This is in contradiction to current empirical models fit to limited experimental data. Forablative porous and non-porous TPS, where complex microstructure is important, thecapability to image a real material with micron scale resolution via x-ray micro-tomography, triangulate the surface, and directly simulate the gas-surface interaction with directsimulation Monte Carlo (DSMC) is demonstrated.

UR - https://www.scopus.com/pages/publications/85087241607

UR - https://www.scopus.com/pages/publications/85087241607#tab=citedBy

U2 - 10.2514/6.2015-3567

DO - 10.2514/6.2015-3567

M3 - Conference contribution

AN - SCOPUS:85087241607

SN - 9781624103209

T3 - 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015

BT - 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015

T2 - 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015

Y2 - 6 July 2015 through 9 July 2015

ER -

Schwartzentruber TE, Poovathingal S, Stern EC. Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature. En 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015. 2015. (20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015). doi: 10.2514/6.2015-3567

Molecular simulation of oxygen reactions with realistic carbon and silica surfaces at high temperature

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ASJC Scopus subject areas

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