19.7.1 Reporting Options

ANSYS FLUENT provides several reporting options for the Lagrangian composition PDF transport calculations. You can generate graphical plots or alphanumeric reports of the following items:

• Static Temperature

• Mean Static Temperature

• RMS Static Temperature

• Mass fraction of species-n

• Mean species-n Mass Fraction

• RMS species-n Mass Fraction

The instantaneous composition ( Static Temperature and Mass fraction of species-n) in a cell are calculated as,

where

$\phi_{\rm instant}$	=	instantaneous cell species mass fraction or temperature at the present iteration
$N_c$	=	number of particles in the cell
$T_p$	=	particle mass fraction or temperature
$m_p$	=	particle mass

Mean and root-mean-square (RMS) temperatures are calculated in ANSYS FLUENT by averaging instantaneous temperatures over a user-specified number of previous iterations (see Section  19.6).

Note that for steady-state simulations, instantaneous temperatures and species represent a Monte Carlo realization and are as such unphysical. Mean and RMS quantities are much more useful.