Top panel: radial profile of the time averaged rms velocity (solid lines) and rms radial velocity (dashed lines). Velocities are in cm/s. The curves from bottom to top correspond to the four models: ref (black), boost1d1 (blue), boost1d2 (magenta) and boost1d4 (red), respectively. Bottom panel: velocities scaled by the enhancement factor (L/L_star)^1/3. The convective boundary corresponding to the Schwarzschild boundary from the 1D initial model is indicated by the vertical solid line.