Abstract
This work analyzes the effect on the wall of large-scale motions (LSMs) in turbulent channel flows. We assess in which region of the channel the large-scale motions have more impact on the wall-shear stress. The proposed method is based on the extended proper orthogonal decomposition (EPOD), which can provide information about the temporal correlation coefficient between two quantities. In this study, the correlation between velocity fields in wall-normal planes and wall-shear-stress signal is analyzed. To test the method, a database obtained from a direct numerical simulation (DNS) is used. Results show that LSMs have a significant correlation with wall-shear stress located in the logarithmic region. Furthermore, it is found that the largest correlation occurs between the largest scales of the flow field and wall-shear stress signal.
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References
M.R. Abbassi, W.J. Baars, N. Hutchins, I. Marusic, Skin-friction drag reduction in a high-Reynolds-number turbulent boundary layer via real-time control of large-scale structures. Int. J. Heat Fluid Flow 67, 30–41 (2017)
Adrian, R.J.: Stochastic estimation of the structure of turbulent fields. Eddy structure identification, pp. 145–195. Springer, Vienna (1996)
G. Berkooz, P. Holmes, J.L. Lumley, The proper orthogonal decomposition in the analysis of turbulent flows. Ann. Rev. Fluid Mech. 25(1), 539–575 (1993)
J. Boree, Extended proper orthogonal decomposition: a tool to analyze correlated events in turbulent flows. Exp. Fluids 35(2), 188–192 (2003)
J.C. Del Alamo, J. Jimenez, Linear energy amplification in turbulent channels. J. Fluid Mech. 559, 205–213 (2006)
S. Discetti, M. Raiola, A. Ianiro, Estimation of time-resolved turbulent fields through correlation of non-time-resolved field measurements and time resolved point measurements. Exp. Therm. Fluid Sci. 93, 119–130 (2018)
N. Hutchins, I. Marusic, Large-scale influences in near-wall turbulence. Philos. Trans. R. Soc. Lond. A: Math., Phys. Eng. Sci. 365(1852), 647–664 (2007)
Y. Li, E. Perlman, M. Wan, Y. Yang, C. Meneveau, R. Burns, S. Chen, A. Szalay, G. Eyink, A public turbulence database cluster and applications to study Lagrangian evolution of velocity increments in turbulence. J. Turbul. 9, N31 (2008)
C. Sanmiguel Vila, O. Flores, Wall-based identification of coherent structures in wall-bounded turbulence. J. Phys. Conf. Ser. 1001(1), 012007 (2018)
C.E. Tinney, F. Coiffet, J. Delville, A.M. Hall, P. Jordan, M.N. Glauser, On spectral linear stochastic estimation. Exp. Fluids 41(5), 763–775 (2006)
C.E. Wark, H.M. Nagib, Experimental investigation of coherent structures in turbulent boundary layers. J. Fluid Mech. 230, 183–208 (1991)
A. Lozano-Durn, O. Flores, J. Jimnez, The three-dimensional structure of momentum transfer in turbulent channels. J. Fluid Mech. 694, 100–130 (2012)
S. Hoyas, J. Jimnez, Reynolds number effects on the Reynolds-stress budgets in turbulent channels. Phys. Fluids 20(10), 101511 (2008)
Acknowledgements
This work has been supported by the European Research Council, under the COTURB grant ERC-2014.AdG-669505.
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Güemes, A., Vaquero, A., Flores, O., Discetti, S., Ianiro, A. (2019). Identifying the Wall Signature of Large-Scale Motions with Extended POD. 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_12
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DOI: https://doi.org/10.1007/978-3-030-22196-6_12
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