In Eq. 3, represents the pulsation amplitude. is pulsation frequency.
represents the plate spacing. and represent continuous phase density and
dispersed phase viscosity, respectively. is the interfacial tension or
DIFT in mass transfer conditions. It should be noticed that the DIFT
determined by this method is an equivalent average interfacial tension
on a cross section of the column. The variation of DIFT in the cross
section is not considered.
Results and discussion
Determination of dynamic
interfacial
tension
Number density
function