Influence of the Model of Ablation on Modeling the Trajectory, Mass Loss, and Energy Deposition of Meteoroids in the Atmosphere

Modeling the interaction with the atmosphere of an entering cosmic body and its fragments after breakup is carried out within the framework of the meteor physics equations. The uncertainty, existing at high velocities, of the heat transfer coefficient and the specific heat of mass loss, which determine the ablation model in the equations used, leads to an uncertainty in the modeling results. To study this uncertainty, the meteor physics equations are solved numerically using various ways of setting the heat transfer coefficient and the effective (due to various processes) heat of ablation. The possible error in modeling the meteoroid trajectory, energy deposition and mass loss, which can occur due to the uncertainty of the specified ablation model, is estimated for various atmospheric entry parameters.