Abstract
Adverse-pressure-gradient (APG) turbulent boundary layers (TBLs) are studied using hot-wire measurements which cover a Clauser pressure-gradient-parameter range up to \(\beta \approx 2.4\). Constant and non-constant \(\beta \) distributions with the same upstream history are studied. The pre-multiplied power-spectral density is employed to study the differences in the large-scale energy content throughout the boundary layer. Two different large-scale phenomena are identified, the first one due to the pressure gradient and the second one due to the Reynolds number; the latter is also present in high-Re ZPG TBLs. A decomposition of the streamwise velocity fluctuations using a temporal filter shows that the small-scale velocity fluctuations do not scale in APG TBL flows since the effect of the large-scale features extends up to the near-wall region.
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References
P. Schlatter, R. Örlü, Assessment of direct numerical simulation data of turbulent boundary layers. J. Fluid Mech. 659, 116–126 (2010)
A. Bobke, R. Vinuesa, R. Örlü, P. Schlatter, History effects and near equilibrium in adverse-pressure-gradient turbulent boundary layers. J. Fluid Mech. 820, 667–692 (2017)
F.H. Clauser, Turbulent boundary layers in adverse pressure gradients. J. Aero Sci 21, 91–108 (1954)
Z. Harun, J.P. Monty, R. Mathis, I. Marusic, Pressure gradient effects on the large-scale structure of turbulent boundary layers. J. Fluid Mech. 715, 477–498 (2013)
R. Vinuesa, R. Örlü, C. Sanmiguel Vila, A. Ianiro, S. Discetti, P. Schlatter, Revisiting history effects in adverse-pressure-gradient turbulent boundary layers. Flow Turbul. Combust. 99, 565–587 (2017)
C. Sanmiguel Vila, R. Örlü, R. Vinuesa, P. Schlatter, A. Ianiro, S. Discetti, Adverse-pressure-gradient effects on turbulent boundary layers: statistics and flow-field organization. Flow Turbul. Combust. 99, 589–612 (2017)
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)
R. Vinuesa, A. Bobke, R. Örlü, P. Schlatter, On determining characteristic length scales in pressure-gradient turbulent boundary layers. Phys. Fluids 28, 055101 (2016)
R. Örlü, Experimental studies in jet flows and zero pressure-gradient turbulent boundary layers. Ph. D. thesis, Royal Institute of Technology (2009)
A.J. Smits, J.P. Monty, M. Hultmark, S.C.C. Bailey, N. Hutchins, I. Marusic, Spatial resolution correction for wall-bounded turbulence measurements. J. Fluid Mech. 676, 41–53 (2011)
N. Hutchins, T.B. Nickels, I. Marusic, M.S. Chong, Hot-wire spatial resolution issues in wall-bounded turbulence. J. Fluid Mech. 635, 103–136 (2009)
V. Kitsios, A. Sekimoto, C. Atkinson, J.A. Sillero, G. Borrell, A.G. Gungor, J. Jiménez, J. Soria, Direct numerical simulation of a self-similar adverse pressure gradient turbulent boundary layer at the verge of separation. J. Fluid Mech. 829, 392–419 (2017)
N. Hutchins, I. Marusic, Evidence of very long meandering features in the logarithmic region of turbulent boundary layers. J. Fluid Mech. 579, 1–28 (2007)
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 (KAW) Foundation as part of the Wallenberg Academy Fellow programme. CSV, SD and AI were partially supported by the Grant DPI2016-79401-R funded by the Spanish State Research Agency (SRA) and European Regional Development Fund (ERDF).
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Sanmiguel Vila, C., Vinuesa, R., Discetti, S., Ianiro, A., Schlatter, P., Örlü, R. (2019). Large-Scale Energy in Turbulent Boundary Layers: Reynolds-Number and Pressure-Gradient Effects. In: Örlü, R., Talamelli, A., Peinke, J., Oberlack, M. (eds) Progress in Turbulence VIII. iTi 2018. Springer Proceedings in Physics, vol 226. Springer, Cham. https://doi.org/10.1007/978-3-030-22196-6_11
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