Results of the energy analysis. (a) Time series for the magnetic (red), internal (blue), kinetic (black), gravitational (green), and total (magenta) energy density relative to t = 0. Solid and dashed lines represent simulation runs with and without a wave driver, respectively. (b) Time series of increased internal energy due to wave energy (ΔI_total, the solid black line), total input energy from the wave driver (S​_input, the solid blue line), and the ‘trapped’ portion of input energy (S​_total, the dashed blue line).