EFFECT OF THE SHAPE OF METAL SOLIDS ON THE RATE OF THEIR JOULE HEATING IN ELECTROMAGNETIC RAIL LAUNCHERS

摘要

This paper presents a method and results of numerical simulations of current-density, magnetic-field, and. temperature distributions in mil launchers of conducting solids for armatures of various shapes. A comparison is made, of the results of calculations using two-dimensional and, three-dimensional models. It. is shown that for' cylindrical and saddle-shaped armatures. Joule heating calculations performed by two-dimensional simulation of electromagnetic and thermal phenomena are in good agreement with calculations for the three-dimensional model.