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Identifying Well-Behaved Turbulent Boundary Layers

  • Carlos Sanmiguel Vila
  • Ricardo Vinuesa
  • Stefano Discetti
  • Andrea Ianiro
  • Philipp Schlatter
  • Ramis ÖrlüEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 196)

Abstract

This paper presents a study focused on the development of zero-pressure-gradient turbulent boundary layers (ZPG TBL) towards well-behaved conditions in the low Reynolds-number range. A new method to assess the length required for the ZPG TBL to exhibit well-behaved conditions is proposed. The proposed method is based on the diagnostic-plot concept (Alfredsson et al., Phys. Fluids, 23:041702, 2011), which only requires mean and turbulence intensity measurements in the outer region of the boundary layer. In contrast to the existing methods which rely on empirical skin-friction curves, shape-factor or wake-parameter, the quantities required by this method are generally much easier to measure. To test the method, the evolution of six different tripping configurations, including weak, late and strong overtripping, are studied in a wind-tunnel experiment to assess the convergence of ZPG TBLs towards well-behaved conditions in the momentum-thickness based Reynolds-number range \(500< Re_\theta < 4000\).

Notes

Acknowledgements

CSV acknowledges the financial support from Universidad Carlos III de Madrid within the program “Ayudas para la Movilidad del Programa Propio de Investigación”. RÖ, RV and PS acknowledge the financial support from the Swedish Research Council (VR) and the Knut and Alice Wallenberg Foundation. CSV, SD and AI were partially supported by the COTURB project (Coherent Structures in Wall-bounded Turbulence), funded by the European Research Council (ERC), under grant ERC-2014.AdG-669505.

References

  1. 1.
    P.H. Alfredsson, A. Segalini, R. Örlü, A new scaling for the streamwise turbulence intensity in wall-bounded turbulent flows and what it tells us about the “outer" peak. Phys. Fluids 23, 041702 (2011)CrossRefGoogle Scholar
  2. 2.
    K.A. Chauhan, P.A. Monkewitz, H.M. Nagib, Criteria for assessing experiments in zero pressure gradient boundary layers. Fluid Dyn. Res. 41, 021404 (2009)CrossRefzbMATHGoogle Scholar
  3. 3.
    I. Marusic, K.A. Chauhan, V. Kulandaivelu, N. Hutchins, Evolution of zero-pressure gradient boundary layers from different tripping conditions. J. Fluid Mech. 783, 379–411 (2015)MathSciNetCrossRefGoogle Scholar
  4. 4.
    P.A. Monkewitz, K.A. Chauhan, H.M. Nagib, Self-consistent high-Reynolds number asymptotics for zero-pressure-gradient turbulent boundary layers. Phys. Fluids 19, 115101 (2007)CrossRefzbMATHGoogle Scholar
  5. 5.
    T.B. Nickels, Inner scaling for wall-bounded flows subject to large pressure gradients. J. Fluid Mech. 521, 217–239 (2004)MathSciNetCrossRefzbMATHGoogle Scholar
  6. 6.
    H.M. Nagib, K.A. Chauhan, P.A. Monkewitz, Approach to an asymptotic state for zero pressure gradient turbulent boundary layers. Phil. Trans. R. Soc. 365, 755–770 (2007)CrossRefzbMATHGoogle Scholar
  7. 7.
    R. Örlü, J.H.M. Fransson, P.H. Alfredsson, On near wall measurements of wall bounded flows – the necessity of an accurate determination of the wall position. Prog. Aero. Sci. 46, 353–387 (2010)Google Scholar
  8. 8.
    R. Örlü, A. Segalini, J. Klewicki, P.H. Alfredsson, High-order generalisation of the diagnostic scaling for turbulent boundary layers. J. Turbul. 17, 664–677 (2016)MathSciNetCrossRefGoogle Scholar
  9. 9.
    C. Sanmiguel Vila, R. Vinuesa, S. Discetti, A. Ianiro, P. Schlatter, R. Örlü, On the identification of well-behaved turbulent boundary layers. J. Fluid Mech. 822, 109–138 (2017).Google Scholar
  10. 10.
    P. Schlatter, R. Örlü, Turbulent boundary layers at moderate Reynolds numbers: inflow length and tripping effects. J. Fluid Mech. 710, 5–34 (2012)CrossRefzbMATHGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Carlos Sanmiguel Vila
    • 1
  • Ricardo Vinuesa
    • 2
  • Stefano Discetti
    • 1
  • Andrea Ianiro
    • 1
  • Philipp Schlatter
    • 2
  • Ramis Örlü
    • 2
    Email author
  1. 1.Aerospace Engineering GroupUniversidad Carlos III de MadridLeganésSpain
  2. 2.Linné FLOW Centre, KTH MechanicsStockholmSweden

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