Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-14T07:23:28.716Z Has data issue: false hasContentIssue false
  • English
  • Français

Numerical simulation of reactive flow in non-equilibrium behind a strong shock wave during re-entry into earth’s atmosphere

Published online by Cambridge University Press:  10 February 2014

R. Allouche ,
R. Haoui  and
R. Renane
R. Allouche*
Affiliation:
Aeronautical Science Laboratory, Aeronautics Department, S. D. University of Blida, Blida, Algeria
R. Haoui
Affiliation:
University of Science and Technology HB, Alger, Algeria
R. Renane
Affiliation:
Laboratoire des dynamiques des moteurs et vibroacoustique, UMBB Boumerdes, Algeria
*
a Corresponding author:[email protected]
Get access

Abstract

In this paper, we study the phenomena of thermo-chemical imbalance in a reactive mono-dimensional flow composed of a mixture of (79% nitrogen N2 and 21% oxygen O2). We are interested in modeling the physicochemical process that may be encountered in hypersonic flows, as vibrational excitation, dissociation and ionization, also the formation of chemical species to higher temperatures behind a detached strong shock. We put a special emphasis on vibrational relaxation model of CVD coupling. At these high temperatures, collisions electrons-atoms become very effective, taking in account the radiation that requires knowledge and modeling of all physicochemical processes (collisional and radiative). The mathematical model of flows at the atmospheric reentry is governed by Euler stationary equations coupled with the chemical kinetics and the radiative transfer equations. Our computational code is based on the finite differences method that used to discretize and resolve the obtained numerical model, where an appropriate mesh is selected in the relaxation zone in order to determine the flow parameters at each grid position

Keywords

Hypersonicreactive flowthermochemical nonequilibriumvibrationdissociationionizationEuler equationradiative transfer
Type
Research Article
Information
Mechanics & Industry , Volume 15 , Issue 1 , 2014 , pp. 81 - 87
Copyright
© AFM, EDP Sciences 2013

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

C. Park, On Convergence of Computation of Reacting Flows, Ed. AIAA-85-0247, 1985
R. Allouche, R. Haoui, Ecoulement d’air ionisé en hors équilibre chimique derrière une onde de choc droite, 18 ème Congrès Français de Mécanique Grenoble, 2007, pp. 27-31
C. Park, Assessment of Two- Temperature Kinetic Model for Ionizing Air, J. Thermophysics (1989)
M. Panesi, T.E. Magin, A. Bourdon, A. Bultel, O. Chazot, Y. Badou, Collisional-radiative modeling in flow simulations, NATO Research and Technology Organization, 2008
Magin, T.E., Panesi, M., Bourdon, A., Jaffe, R.L., Schwenke, D.W., Coarse-grain model for internal energy excitation and dissociation of molecular nitrogen, Chem. Phys. 398 (2012) 90-95 CrossRefGoogle Scholar
H.M. Damevin, K. Hoffmann, Numerical Magnetogas-dynamics Chemically Reacting Flows, AIAA 2001–2746, 2001
J.M. Lamet, Transferts radiatifs dans les écoulements hypersoniques de rentrée atmosphérique terrestre, Thèse Doctorat (E.M2.C.) UPR 288, CNRS et École Centrale Paris. 21 Septembre 2009
W.C. Gardiner, Combustion chemistry, Springer Verlag, New-York, 1984
L. Dala, Hypersonic Viscous Flows Including Non-Equilibrium Real Gas Effects, Manchester School of Engineering Aerospace Division, 1997
R. Brun, Transport et relaxation dans les écoulements gazeux, Masson, 1986
Treanor, C.E., Marrone, P.V., Effect of Dissociation on the Rate of Vibrational Relaxation, Phys. Fluids 5 (1962) 1022-1026 CrossRefGoogle Scholar
T. Soubrie, Prise en compte de l’ionisation et du rayonnement dans la modélisation des écoulements de rentrée terrestre et martienne, Thèse Doctorat de SUPAERO, Novembre 2006
A.L. Jaumotte, Chocs et Ondes de Choc, Tome II, Masson et Cie, Editeurs 120, BD Saint-Germain, Paris, 6e, 1973
R. Allouche, R. Haoui, J.D. Parisse, R. Renane, Study of Thermo-Chemical Non-Equilibrium Phenomena behind Strong Shock Waves at Atmospheric Re-entry, AMR 274 (2011)
R.N. Gupta, J.M. Yoss, RA. Thompson, K.P. Lee, A review of reaction rates and thermodynamic and transport properties for an 11-species air model for chemical and thermal nonequilibrium calculations to 30 000 K. NASA-RP-1232, 1990
R. Allouche, R. Haoui, Ionising Air in Thermo and Chemical Nonequilibrium Flow Behind a Plane Shock Wave, 14th AIAA Space Planes and Hypersonic Systems and Technologies Conference, 2006