“…4,5,13,22,34 The heat of ablation, or Q * , as it is denoted in the literature, is often incorrectly used as a material property, when in fact it is only a data correlation parameter valid only during steady state ablation. For these early formulations the 1-D heat equation for the in-depth temperatures was given by equation (3). For these early formulations, researchers developed an energy balance equation at the surface to describe phenomenon that they knew about.…”