Instabilities in Hypersonic Boundary Layers Under the Influence of High-temperature Gas Effects

Christian Stemmer () and Nikolaus A. Adams
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Christian Stemmer: Technische Universität Dresden, Institut für Strömungsmechanik
Nikolaus A. Adams: Technische Universität München, Institut für Aerodynamik

A chapter in High Performance Computing in Science and Engineering’ 05, 2006, pp 119-127 from Springer

Abstract: Summary Investigations on the spatial evolution of instabilities for hypersonic boundary-layer flows on a flat plate with dissociation are presented. A higher order compact numerical scheme allows for the detailed investigation of the linear and the non-linear evolution of the disturbance waves in the presence of chemical reactions. Compared to the ideal-gas case, lower temperatures in the boundary-layer are present. The three-dimensional disturbance behaviour is experiencing slight damping in the linear regime compared to equilibrium results. High-level disturbances can also lead to local shocklets that are treated with a hybrid ENO-scheme. Experiments for qualitative validation of the results at elevated Mach numbers are available by Mironov.

Keywords: Direct Numerical Simulation; Vibrational Temperature; Linear Stability Theory; Translational Temperature; Hypersonic Boundary Layer (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-29064-3_9

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DOI: 10.1007/3-540-29064-8_9

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