Symbol	Description
n	Particle property (size) distribution
$\mathbf{u}$	Particle property vector (size)
t	time
$N_i$	Number of particles in the cell i
${\mu }_i$	ith order moment
$\mathbf{I}$	Total number of cells
$I_{agg}$	Degree of aggregation
$l_{j,k}$	Index of the cell where $({\mathbf{u}}_j+{\mathbf{u}}_k)$ falls
$\phi$	Weight function
a	Aggregation kernel
$\Delta$	Measure of sectional error
$\theta$	Sum function
$\overline{u}$	Average size of particles along u axis
$\overline{v}$	Average size of particles along v axis
${\chi }^2$	Mixing of components