Energy spectrum for a small box extracted from the simulation domain (blue curve) and for the full domain (orange curve) at 400 orbits. Overplotted are two power laws, k^−5/3 and k⁻⁵ illustrating the Kolmogorov regime and a steeper dissipation regime, respectively. The dotted and dashed vertical gray lines mark the wavenumbers corresponding to the marginal and fastest-growing VSI modes, based on the prescription from Umurhan et al. (2016). The dash-dotted vertical line denotes to the mode whose wavelength equals the local disk scale height λ = H, corresponding to kH = 2π.