List of symbols

Symbol	Name of the symbol	Unit
$d$	diameter	$\mathrm{mm}$
$d_T$	throat diameter	$\mathrm{mm}$
$f_D$	diffuser friction factor	$\mathrm{ }$
$f_I$	inlet cone friction factor	$\mathrm{ }$
$f_T$	throat friction factor	$\mathrm{ }$
$l_T$	throat length	$\mathrm{mm}$
$r$	radius	$\mathrm{mm}$
$r_1$	semimajor (longitudinal) axis	$\mathrm{mm}$
$r_2$	semiminor (radial) axis	$\mathrm{mm}$
$α_D$	diffuser angle	$\mathrm{°}$
$α_I$	inlet cone angle	$\mathrm{°}$
$β$	diameter ratio	$\mathrm{ }$
$ζ$	loss coefficient	$\mathrm{ }$
$λ$	jet contraction ratio	$\mathrm{ }$
$μ$	discharge coefficient	$\mathrm{ }$