Details

Autor(en) / Beteiligte

• Pandolfi, Maurizio
• Arina, Renzo
• Botta, Nicola

Titel

Nonequilibrium hypersonic flows over corners

Ist Teil von

• AIAA journal, 1991-02, Vol.29 (2), p.235-241

Ort / Verlag

Reston, VA: American Institute of Aeronautics and Astronautics

Erscheinungsjahr

1991

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The hypersonic nonequilibrium flow of air over concave and convex corners is investigated. The description of the flowfield is based on the Euler equations and a chemical model that accounts for the finite rate reactions. An upwind formulation and the related space-marching technique are developed in order to achieve the numerical solution of the fluid dynamical and chemical equations, coupled together. The attention is focused on the effects of nonequilibrium chemistry on fluid dynamics. The transition from the frozen flow condition, just behind the corner, and the equilibrium flow, reached at very large distances far downstream, is characterized by intermediate strong nonequilibrium chemical processes. Such a transition promotes dissipations that, in turn, generate vorticity. (Author)