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Global Instability in Shock Wave Laminar Boundary-Layer Interaction

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Book cover Instability and Control of Massively Separated Flows

Part of the book series: Fluid Mechanics and Its Applications ((FMIA,volume 107))

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Abstract

The linear global stability of an interaction between an oblique shock wave and a laminar boundary layer is carried out for various oblique shock angles. It is illustrated that such a flow acts as a noise amplifier. The least temporally damped global modes are classified into three main categories, low, medium and high frequencies. The high frequencies are localized into the attached boundary layer, the medium frequencies are associated with Kelvin–Helmholtz like structures along the shear layer and convective waves in the separated flow downstream whereas the low frequencies are driven by the interaction zone. In particular, a low frequency mode emerges which is scaled by the interaction length and the freestream velocity.

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References

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Authors and Affiliations

  1. DynFluid Laboratory, Arts et Métiers ParisTech, 151, Bd. de l’Hôpital, 75013, Paris, France

    F. Guiho & J.-Ch. Robinet

  2. DynFluid Laboratory, CNAM, 151, Bd. de l’Hôpital, 75013, Paris, France

    F. Guiho & F. Alizard

Authors
  1. F. Guiho
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  2. F. Alizard
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  3. J.-Ch. Robinet
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Corresponding author

Correspondence to J.-Ch. Robinet .

Editor information

Editors and Affiliations

  1. School of Aerospace Engineering, Technical University of Madrid, Madrid, Spain

    Vassilis Theofilis

  2. Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, VIC, Australia, and Department of Aeronautical Engineering, King Abdulaziz University, Jeddah, Saudi Arabia

    Julio Soria

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© 2015 Springer International Publishing Switzerland

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Guiho, F., Alizard, F., Robinet, JC. (2015). Global Instability in Shock Wave Laminar Boundary-Layer Interaction. In: Theofilis, V., Soria, J. (eds) Instability and Control of Massively Separated Flows. Fluid Mechanics and Its Applications, vol 107. Springer, Cham. https://doi.org/10.1007/978-3-319-06260-0_14

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  • DOI: https://doi.org/10.1007/978-3-319-06260-0_14

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-06259-4

  • Online ISBN: 978-3-319-06260-0

  • eBook Packages: EngineeringEngineering (R0)

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