Normalised power spectra of velocity from depths z = 0.85d (left panel), z = 0.49d (middle), and z = 0.13d (right) for Pr_SGS = 0.1 (black lines), 1 (blue), and 10 (red) and Re = 167…190 corresponding to runs C01, C1, and C10, respectively. The insets show the low-wavenumber part of the spectra. The dashed and dotted lines respectively indicate the Bolgiano-Obukhov k^−11/5 and Kolmogorov-Obukhov k^−5/3 scalings for reference.