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Parabolized stability analysis of chemically reacting boundary layer flows in equilibrium conditions

par Zanus, Ludovico ;Miró Miró, Fernando ;Pinna, Fabio
Référence 7th European Conference for Aeronautics and pace Sciences
Publication Publié, 2017-07-06

Publication dans des actes

• Accès en ligne
• Détails
• Contenu
• Statistiques

Résumé :

Stability of self-similar hypersonic flows over a flat plate in presence of local thermodynamic equilibrium conditions is studied by means of linear Parabolized Stability Equations (PSE). A spectral collocation numerical method together with a finite difference-based marching scheme are used to solve the equations, while the gas mixture and transport properties are computed with a table look-up procedure. High temperature effects are found to destabilize the second Mack mode regardless of the adiabatic/isothermal wall condition considered. On the other hand, nonlocal effects show a Mach-dependence influence: stabilizing at lower Mach, while destabilizing at higher ones.