par Zanus, Ludovico ;Miró Miró, Fernando ;Pinna, Fabio
Référence (8-12 January 2018: Kissimmee, Florida), 2018 AIAA Aerospace Sciences Meeting
Publication Publié, 2018-01-12
Publication dans des actes
Résumé : Stability of hypersonic boundary layers over flat plates and cones is studied by means of a Nonlinear Parabolized Stability Equations (NPSE) code, recently developed within the VKI Extensible Stability and Transition Analysis (VESTA) toolkit of the von Karman Institute. Equations are properly derived to consider curvature effects along multiple directions. After being verified, the algorithm is applied to asses transverse curvature and body divergence influence on the second Mack mode stability of a Mach 6 flow over a straight circular cone at zero angle of attack. Results confirm the negligible effect of curvature for this flow configuration. Curvature terms are shown to modify all harmonic amplitudes in the same way and independently to each other.