Accession Number : AD0458464

Title :   THE ELECTROMAGNETIC FIELDS PRODUCED BY A GENERAL CURRENT DISTRIBUTION IN A CONDUCTIVE ENVIRONMENT UNDER CERTAIN SYMMETRY CONDITIONS.

Descriptive Note : Technical rept., Aug-Oct 64,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX

Personal Author(s) : Graham,W. R.

Report Date : JAN 1965

Pagination or Media Count : 48

Abstract : The detonation of a nuclear weapon near the surface of the ground generates large electromagnetic fields. The distributed current and time and space varying conductivity caused by the detonation make analytic solutions to Maxwell's equations intractable. A numerical technique is presented which allows one to find the nuclear-weapon-generated electromagnetic fields with the aid of a high-speed digital computer. The technique is also applicable to problems of antennas in conductive environments subject to certain symmetry conditions. Stability and accuracy of the numerical technique are discussed, an internal consistency check is derived, and a test problem for the technique is developed. It is concluded that this numerical technique proved successful in calculating the electromagnetic fields generated by a nuclear weapon detonation. (Author)

Descriptors :   (*ELECTROMAGNETIC FIELDS, NUCLEAR EXPLOSIONS), (*NUCLEAR EXPLOSIONS, ELECTROMAGNETIC PULSES), PARTIAL DIFFERENTIAL EQUATIONS, NUMERICAL ANALYSIS, STABILITY, POLYNOMIALS, CONDUCTIVITY, DIFFERENCE EQUATIONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE