The modelling of thermal processes generated by the friction of an armature on rails in an electromagnetic launcher

The processes caused by the generation of heat due to mechanical friction at the contact surface armature/rail in an electromagnetic launcher of a railgun type are considered. The Joule heating is absent. The corresponding physical-mathematical model is presented, specific features of a numerical algorithm are described. Under certain assumptions the analytical solutions are obtained. Analytical solutions are in a good agreement with the numerical results.