5.1 Population Balance Variables

The macros listed in Table  5.1.1 can be used to return real variables associated with the population balance model. The variables are available in both the pressure-based and density-based solvers. The macros are defined in the sg_pb.h header file, which is included in udf.h.

Table 5.1.1: Macros for Population Balance Variables Defined in sg_pb.h

Macro	Argument Types	Returns
C_PB_DISCI	cell_t c, Thread *t, int i	fraction ( $f_i$) of the total volume fraction for the $i$th size bin
C_PB_SMMI	cell_t c, Thread *t, int i	$i$th moment
C_PB_QMOMI	cell_t c, Thread *t, int i	$i$th moment, where $i=0,1,2,3,4,5$
C_PB_QMOMI_L	cell_t c, Thread *t, int i	abscissa $L_i$, where $i=0,1,2$
C_PB_QMOMI_W	cell_t c, Thread *t, int i	weight $w_i$, where $i=0,1,2$
C_PB_DISCI_PS	cell_t c, Thread *t, int i	net source term to $i$th size bin
C_PB_SMMI_PS	cell_t c, Thread *t, int i	net source term to $i$th moment
C_PB_QMOMI_PS	cell_t c, Thread *t, int i	net source term to $i$th moment