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Developing a finite difference time domain parallel code for nuclear electromagnetic field Simulation

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3 Author(s)
A. Ray ; Bhabha Atomic Res. Centre, Theor. Phys. Div., Mumbai, India ; G. Kondayya ; S. V. G. Menon

A two dimensional finite-difference time-domain code has been developed for complete simulation of nuclear electromagnetic pulse (NEMP) originating from an atmospheric nuclear detonation. The modules of NEMP simulation code describing various physics aspects are discussed. Typical results of the serial code for Compton current estimated from detailed neutron-gamma transport, induced air conductivity and electromagnetic fields are presented. The need for parallelizing such code has been explained. The parallel implementation using domain decomposition technique of message passing interface paradigm is described. The efficiency of the parallel code has been studied with increasing number of processors. The limitations of speed-up due to communication times are discussed.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:54 ,  Issue: 4 )