Abstract
The supersonic flow past a sharp cone is studied. The associated boundary layer flow (i.e. the velocity and temperature field) is computed. The inviscid linear temporal stability of axisymmetric boundary layers in general is considered, and in particular, a so- called “triply generalized” inflection condition for “subsonic” non- axisymmetric neutral modes is presented. Preliminary numerical results for the stability of the cone boundary layer are presented for a freestream Mach number of 3.8. In particular, a new inviscid mode of instability is seen to occur in certain regimes, and this is shown to be related to a viscous mode found by Duck and Hall (1988).
A number of computations were performed using time provided under S.E.R.C. grant number GR/E/25702.
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References
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© 1990 Springer-Verlag New York Inc.
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Duck, P.W. (1990). The Inviscid Stability of Supersonic Flow Past Axisymmetric Bodies. In: Hussaini, M.Y., Voigt, R.G. (eds) Instability and Transition. ICASE/ NASA LaRC Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3432-6_8
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DOI: https://doi.org/10.1007/978-1-4612-3432-6_8
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