Kinetic energy fluxes through a height of 5 Mm in the simulations, as functions of time. They are shown for the B₀ = 35 G and B₀ = 50 G experiments in the top and bottom panels, respectively, assuming an arcade depth (third-dimension depth) of 100 Mm. Results are shown for the main simulation presented in this paper alongside results for a simulation with identical parameters, except for setting the beam heating term, H_e = 0 at all times.