Symbol
$A_{\mathrm{t}}$
Unit
Formulae
$h_{\mathrm{t}} w_{\mathrm{t}}$rectangular shape
$\frac{Di_{\mathrm{t}}^{2} \pi}{4}$circular shape
Related
$Di_{\mathrm{t}}$
$h_{\mathrm{t}}$
$w_{\mathrm{t}}$
Used in
$C_{\mathrm{av}}$
$Di_{\mathrm{t}}$