Comparison Between 2-D and 3-D Electromagnetic Modeling of Railgun

摘要

This paper compares the results of 2- and 3-D numerical calculations of current density and temperature distributions in electromagnetic rail accelerators of conducting solids with some typical armature shapes. It is shown that, for the cylindrical and saddle-shaped armature shapes, the 2-D description of the armature heating is in reasonable agreement with the 3-D description.