D. Decogan et P. Enders, DISCRETE GREEN-FUNCTIONS AND HYBRID MODELING OF THERMAL AND PARTICLE DIFFUSION, International journal of numerical modelling, 7(6), 1994, pp. 407-418
This paper provides details of a widely applicable technique of hybrid
modelling of thermal and particle diffusion which can help to reduce
computational load in explicit formulations. The undersirable effects
of artificial boundaries, which are introduced when a simulation is tr
uncated or when an expanding mesh is used, can be eliminated by the us
e of discrete Green's functions. The technique can also be applied to
problems involving infinite or near-infinite domains or problems where
a complex thermal region is embedded within a larger, more simply des
cribed domain.