$C$	Solute concentration (g solute/g solvent)
$C^{*}$	Equilibrium concentration (g solute/g solvent)
$Q$	Volumetric flow rate (m3 s−1)
$r$	Radial position from centre of disc (m)
$t_{\mathrm{res}}$	Mean disc residence time (s)
$u_{\mathrm{av}}$	Film thickness-averaged radial velocity on disc (m s−1)
$u_i$	Inlet velocity (m s−1)
$v_{\mathrm{r}}$	Instantaneous disc radial velocity (m s−1)
Greek symbols
$\delta$	Liquid film thickness (m)
$\dot{\gamma }$	Shear rate (s−1)
ω	Angular velocity (rad s−1)
ν	Kinematic viscosity (m2 s−1)
Dimensionless numbers
$Ek$	Ekman number, $Ek=\frac{\nu }{\omega {\delta }^2}$ (-)
$Re$	Reynolds number, $Re=\frac{2Q}{\pi \nu r}$ (-)
$R{e}_{\omega }$	Rotational Reynolds number, $R{e}_{\omega }=\frac{\omega r^2}{\nu }$ (-)
$Ro$	Rossby number, $Ro=\frac{u_i}{\omega r}$ (-)
$S$	Supersaturation $S=\frac{C}{C^{*}}$ (-)
Subscripts
i	Inlet
o	Outlet