The size-segregation pattern was determined for two nearly binary mixt
ures (size ratio 2:1 and 5.7:1) of equal weight (1:1) granulated sugar
under funnel flow and mass flow conditions. For funnel flow condition
, the mixtures exhibited a distinctly fines-predominant flow stream du
ring initial discharge and a coarse-predominant flow stream during the
remainder of the discharge. Both mixtures in the mass flow bin tended
to stay near and fluctuate about the ideal ratio of one. Statistical
analysis (0.05 level of significance) confined that an increase in seg
regation occurs during funnel flow-type when compared to mass flow-typ
e. For both flow-types, the segregation was more pronounced in the 2:1
than the 5.7:1 mixture. The tendency for increased segregation to occ
ur in the 2:1 than the 5.7:1 particle size ratio mixture of equal weig
ht fraction fine and coarse particles is corroborated by Arteaga and T
uzun's (1990) predictive model.