Evolution of different quantities as a function of time: (a) Relative changes in the kinetic energy ΔE_kin (dashed line), magnetic energy ΔE_mag (solid line), internal energy ΔE_int (dash-dotted line), and total energy ΔE_tot (dotted line); (b) resistive dissipation rate Q_η (dashed line), incompressive pressure–strain effective dissipation rate ψ_i (solid line), and its compressive counterpart ψ_c (dotted line). These rates are normalised to the total effective dissipation rate Q = Q_η + ψ (averaged over 200 ≤ tΩ_i ≤ 300).