Abstract
The flow over nine different surfaces with sharp-edged roughness elements were measured by single wire anemometry. The intensity of turbulence did increase with the plan/frontal solidity of the roughness elements. We used a diagnostic plot to assess the quality of boundary-layer flows. All investigated boundary layers revealed linear dependence of the turbulence intensity on the relative mean wind speed in the outer layer. The slope of the diagnostic plot was dependent on the frontal solidity of the elements but not on their size. The intensity of turbulence exceeds the maximal slope of the diagnostic plot for rough-wall flows showed in (J. Fluid Mech.727:119–131) in six cases.
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References
A.A. Townsend, Turbulent Structure of Turbulent Shear Flow, (Cambridge University Press, 1976)
K.A. Flack, M.P. Schultz, T.A. Shapiro, Experimental support for townsend’s reynolds number similarity hypothesis on rough walls. Phys. Fluids 17, (2005)
P.-A. Krogstad, V. Efros, About turbulence statistics in the outer part of a boundary layer developing over two-dimensional surface roughness. Phys. Fluids 24, (2012)
M. Placidi, B. Ganapathisubramani, Turbulent flow over large roughness elements: effect of frontal and plan solidity on turbulence statistics and structure. Bound. Layer Meteorol. 167, 99–121 (2018)
P.H. Alfredsson, R. Örlü, The diagnostic plot—a limitus test for wall bounded turbulence data. Eur. J. Mech. B/Fluids 29, 403–406 (2010)
P.H. Alfredsson, R. Örlü, A. Segalini, A new formulation for the streamwise turbulence intensity distribution in wall-bounded turbulent flows. Eur. J. Mech. B/Fluids 36, 167–175 (2012)
I.P. Castro, A. Segalini, P.H. Alfredsson, Outer-layer turbulence intensities in smooth- and rough-wall boundary layers. J. Fluid Mech. 727, 119–131 (2013)
K.A. Chauhan, P.A. Monkewitz, H.M. Nagib, Criteria for assessing experiments in zero pressure gradient boundary layers. Fluid Dyn. Res. 41(2), (2009)
K.A. Chauhan, H.M. Nagib, P.A. Monkewitz, On the composite logarithmic profile in zero pressure gradient turbulent boundary layers (2007)
Acknowledgements
The financial support for the present project was provided by the Czech Science Foundation under the Grant No.18-09539S and by the institutional support RVO 61388998.
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Jurčáková, K., Procházka, P., Kellnerová, R., Antoš, P., Skála, V. (2021). Influence of Rough Surface Morphology on Boundary Layer Flow. In: Örlü, R., Talamelli, A., Peinke, J., Oberlack, M. (eds) Progress in Turbulence IX. iTi 2021. Springer Proceedings in Physics, vol 267. Springer, Cham. https://doi.org/10.1007/978-3-030-80716-0_25
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