TY - GEN
T1 - Analysis of chemical nonequilibrium and elemental demixing within carbon dioxide plasma flows for mars entry application
AU - Rini, P.
AU - Panesi, M.
AU - Thömel, J.
AU - Chazot, O.
AU - Degrez, Gérard
PY - 2007
Y1 - 2007
N2 - A detailed analysis of carbon dioxide plasma flows produced within the torch of the VKI plasmatron is presented. Several torch operating pressures ranging from 20 kPa up to 40 kPa have been investigated to assess their influence on the flow behavior. Two models for the description of the flow chemistry have been used : the chemical non equilibrium model and the local thermodynamic equilibrium model with variable elemental fraction. As pressure increases, the equilibrium results approach the nonequilibrium ones showing that, for the purpose of determining catalytic properties of thermal protection materials to be used during Mars planetary entry, a lighter but accurate formalism can be used.
AB - A detailed analysis of carbon dioxide plasma flows produced within the torch of the VKI plasmatron is presented. Several torch operating pressures ranging from 20 kPa up to 40 kPa have been investigated to assess their influence on the flow behavior. Two models for the description of the flow chemistry have been used : the chemical non equilibrium model and the local thermodynamic equilibrium model with variable elemental fraction. As pressure increases, the equilibrium results approach the nonequilibrium ones showing that, for the purpose of determining catalytic properties of thermal protection materials to be used during Mars planetary entry, a lighter but accurate formalism can be used.
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M3 - Conference contribution
AN - SCOPUS:34250861344
SN - 1563478900
SN - 9781563478901
T3 - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
SP - 16102
EP - 16108
BT - Collection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
T2 - 45th AIAA Aerospace Sciences Meeting 2007
Y2 - 8 January 2007 through 11 January 2007
ER -