Finite difference
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Revision as of 17:54, 5 December 2005
Finite difference methods treat the terms in the governing equations as mathetmatical objects without usually alluding to the physical significance of each term. It aims at approximating the derivatives (transient, diffusion, convection) via a Tyalor-Series expansion. The method therefore assumes that the variation of the concerned variable is somehow polynomial, so that higher derivatives have negligible effects.
