caa a22 4500 606198113 CHVBK 20210128100932.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00348-015-2052-1 doi (NATIONALLICENCE)springer-10.1007/s00348-015-2052-1 The effect of active grid initial conditions on high Reynolds number turbulence [Elektronische Daten] [R. Hearst, P. Lavoie] The most expansive active grid parametric study to date is conducted in order to ascertain the relative importance of the various grid parameters. It is identified that the three most important parameters are the Rossby number, Ro, the grid Reynolds number, $$Re_M,$$ R e M , and the wing geometry. For $$Ro > 50$$ R o > 50 , an asymptotic state in turbulence intensity is reached where increasing Ro further does not change the turbulence intensity, while other parameters continue to vary. Three wing geometries are used: solid square wings, solid circular wings, and square wings with holes. It is shown that the wings with the greatest blockage produce the highest turbulence intensities and $$Re_\lambda$$ R e λ , but that parameters such as the Kolmogorov, Taylor, and integral scales are not significantly influenced by wing geometry. Finally, it is demonstrated that for several different sets of initial conditions that produce the same $$Re_\lambda$$ R e λ , the spectra are collapsed everywhere but at the largest scaleswhen normalized by Kolmogorov variables. This result suggests that regardless of the very different origins of the turbulence, the shape of the spectra at high wavenumbers is dependent only on $$Re_\lambda$$ R e λ , hence demonstrating a degree of independence from the initial conditions. Springer-Verlag Berlin Heidelberg, 2015 Hearst R. Institute for Aerospace Studies, University of Toronto, M3H 5T6, Toronto, ON, Canada aut Lavoie P. Institute for Aerospace Studies, University of Toronto, M3H 5T6, Toronto, ON, Canada aut Experiments in Fluids Springer Berlin Heidelberg 56/10(2015-10-01), 1-20 0723-4864 56:10<1 2015 56 348 https://doi.org/10.1007/s00348-015-2052-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-2052-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hearst R. Institute for Aerospace Studies, University of Toronto, M3H 5T6, Toronto, ON, Canada aut NATIONALLICENCE 700 1- Lavoie P. Institute for Aerospace Studies, University of Toronto, M3H 5T6, Toronto, ON, Canada aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/10(2015-10-01), 1-20 0723-4864 56:10<1 2015 56 348