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Home  >  Transactions OF NAMP VOL1

22. Finite Difference Time Domain Method by Eghuanoye Ikata Transactions of NAMP Vol. 1, (Nov., 2015), pp 179 – 200
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This discourse on the finite difference time domain method is pedagogic, and is intended to inculcate the basic knowledge required to use the method. The primary concepts and ideas which make the method work, such as, finite difference, discretizaton, initialization and lattice truncation, are explained. Finite difference time domain algorithms for acoustic wave and electromagnetic wave are derived, showing how the method may be applied to other wave types. This is extended to the alternating direction implicit finite difference time domain method. The conditions for numerical stability of a difference algorithm are obtained using von Neumann method.