Compressive components of the density-weighted velocity power spectra (20) are shown at z = 0 as a function of the dimensionless wavenumber , where k_r = |k|. The spectra are extracted from the high resolution (HR) runs of the four dynamically perturbed test clusters using a cube of size L_sp = r₂₀₀ with grid points and are shown up to the wavenumber . In each panel, different lines refer to runs with different AV viscosity parameters, the line style and color coding is the same as in the previous figures. The solid black line indicates the Kolgomorov scaling, while open diamonds correspond to the volume-weighted velocity power spectrum of the standard AV runs.