“…The principal limitations of all of these design approaches were the assumption of the existence of only a homogeneous core with uniform flux across the scrubber and the absence of film flow on the wall. Visual observations and experimentation have indicated the cxistcnce of an annular two-phase, two component flow with a thin liquid layer on the walls and a high velocity gas stream carrying the droplets in the core (Azzo- Several important mathematical models to predict particle collection efficiency in a Venturi scrubber (Azzopardi and Govan, 1984;Behie and Beeckmans, 1973;Boll, 1973;Calvert, 1970;Ekman and Johnstone, 1951;Fathikalajahi et al, 1996;Peters, 1981, 1982;Viswanathan et al, 1984) use one of these approaches. Most of the earlier design approaches are based on the analytical model developed by Boll (19731, considering drop motion and particle impaction on drops.…”