High-Enthalpy Effects on Hypersonic Boundary-Layer Transition

What is it about?

In the present study three boundary layer stability codes are compared based on hypersonic high enthalpy boundary layer flows around a blunted 7° half-angle cone. The comparison focuses on the role of real gas effects on the second mode instability, in particular the disturbance frequency and deals with the question, in how far not accounting for real gas effects compromises the stability analysis. The focus of the comparison between the stability results and the experiments is, beside real gas effects, the influence of uncertainties in the mean flow on the stability analysis.

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