Nusselt number, duct to air

Symbol
$\mathrm{Nu}_{da}$
Formulae
$c_{\mathrm{Nu}_{r}} \left(\mathrm{Gr}_{da} \mathrm{Pr}_{gas}\right)^{n_{\mathrm{Nu}_{r}}}$natural convection
$\mathrm{Pr}_{gas}^{0.333} \mathrm{Re}_{air}^{p_{\mathrm{Nu}_{r}}} b_{\mathrm{Nu}_{r}}$forced convection
Related
$b_{\mathrm{Nu}_{r}}$
$c_{\mathrm{Nu}_{r}}$
$\mathrm{Gr}_{da}$
$n_{\mathrm{Nu}_{r}}$
$p_{\mathrm{Nu}_{r}}$
$\mathrm{Pr}_{gas}$
$\mathrm{Re}_{air}$
Used in
$h_{conv_{da}}$