“…Following Neuman and Sorek (1982) for transport problems (e.g. see also Neuman, 1984;Sorek, 1988a,b), for flow problems (Sorek, 1985;Sorek and Braester, 1988) and a modified Eulerian-Lagrangian method for coupled flow and transport model (Bear et al, 1997;Sorek et al, 2000), a technique consisting of the following two steps is used:…”