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Characterisation of the Transient Dynamics of a Controlled Separated Flow Using Phase Averaged PIV

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Instability and Control of Massively Separated Flows

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

Abstract

The transient dynamics of a high Reynolds number two-dimensional boundary layer flow undergoing a massive separation is investigated. A spanwise array of pulsed round jets, located upstream of the separated region, is used as actuators. Spatial and temporal organisation of the separation and reattachment processes are investigated using phase-averaged PIV measurements in combination with the survey of wall friction along the separation region with the overall objective to develop closed-loop controllers. While different sets of parameters including freestream flow to jet velocities ratio, duty cycle and jets frequency have been considered in the overall work, preliminary results for two cases are presented within.

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References

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Acknowledgments

The present work is supported by the Agence National de la Recherche (ANR) through the French ANR project SEPACODE and by the CISIT International Campus through the Contraéro project. The authors are indepted to C. Cuvier for his help during the experiments and for the PIV images processing, and J.M. Foucaut for his helpfull assistance.

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Authors and Affiliations

  1. Laboratoire de Mécanique de Lille, UMR CNRS 8107, Lille, France

    C. Raibaudo, F. Kerhervé & M. Stanislas

Authors
  1. C. Raibaudo
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  2. F. Kerhervé
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  3. M. Stanislas
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Corresponding author

Correspondence to F. Kerhervé .

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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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Raibaudo, C., Kerhervé, F., Stanislas, M. (2015). Characterisation of the Transient Dynamics of a Controlled Separated Flow Using Phase Averaged PIV. 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_27

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  • DOI: https://doi.org/10.1007/978-3-319-06260-0_27

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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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