The characteristics-based ssolution. It is easy to verify thatectional method (CBSM) offers an
Eulerian description of an internally mixed aerosol. It was shown to be robust and capable of
exact preservation of lower order moments, allowing for highly skewed sectional droplet size
distributions. In this paper we apply CBSM to a spatially varying flow, by incorporating the
fractional step method. In this way an accurate time integration of the spatial terms in the
transport equations for the velocity, mass fractions and sectional droplet concentrations is …