Atmospheric response to the RADYN simulation for the 15 Mm half-loop with initial apex temperature of 1 MK. Each column corresponds to the heating model with E_C = 5, 10, and 15 keV, and each row represents the temperature, velocity, electron number density, and beam heating rate. Negative (positive) velocities correspond to upflows (downflows). The quantities are plotted in the range z ∈ [0, 3] Mm at 1 s intervals. Temperature, velocity, and electron number density are displayed for the first 20 s of the simulations, while the beam heating rate is given for the duration of the injected electron beam (10 s). The insets in panels d–f show the velocity in the region z = 1–2 Mm saturated to ±10 km s⁻¹.