Title :
3-D modeling of electromagnetic fields in application to electromagnetic launchers
Author :
Galanin, M.P. ; Khalimullin, Y.A. ; Lototsky, A.P. ; Milyayev, K.K.
Author_Institution :
Keldysh Inst. of Appl. Math., Moscow, Russia
Abstract :
A mathematical model for a homogeneous (over regions of distinctly different electrophysical properties) simulation of phenomena in a railgun launcher is constructed. The necessity of the use of three-dimensional (3-D) approximation is shown. The algorithm for defining boundary conditions is developed, so that a given total launcher current is equal to the current through a region of simulation. Numerical calculations with different ways of specifying boundary conditions are compared. The results of 3-D numerical simulation of railguns of different configurations are presented. Particularly, the muzzle-fed railgun is described in detail.
Keywords :
boundary-value problems; current distribution; electromagnetic fields; inductance; railguns; 3-D modeling; boundary conditions; computational electromagnetics; current distribution; electromagnetic fields; electromagnetic launchers; homogeneous simulation; inductance per unit length; mathematical model; muzzle-fed railgun; numerical calculations; railgun configurations; railgun launcher; three-dimensional approximation; total launcher current; Acceleration; Boundary conditions; Electromagnetic fields; Electromagnetic launching; Electromagnetic modeling; Mathematical model; Plasma accelerators; Railguns; Rails; Three dimensional displays;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.807716
