Top panel: map of gas density for a slice of 100   kpc   h^-1 through the centre of the major merger cluster H5 (right column) and of the merging cluster H3 (left column). The top row shows the projected average gas density (in [ρ/ρ_cr,b], where ρ_cr,b is the critical baryon density), the bottom row shows the projected map of the turbulent diffusion for the same regions (in units of [cm²   s^-1]).