Convection heat transfer coefficient, object to gas

Symbol
$h_{conv_{og}}$
Unit
W/(K.m$^2$)
Formulae
$\frac{\mathrm{Nu}_{og} k_{gas}}{\delta _{d}}$Riser closed at both ends (Anders)
$\frac{\mathrm{Nu}_{og} k_{gas} \left(\frac{0.46 D_{di}}{D_{o}} + 0.54\right)}{\delta _{d}}$Riser open at both ends (Anders)
$\frac{\mathrm{Nu}_{og} k_{gas}}{L_{d}}$Riser open at top and closed at bottom (Anders)
$\frac{\mathrm{Nu}_{og} k_{gas}}{L_{d}}$General case (Hartlein & Black)
$\frac{\mathrm{Nu}_{og} k_{gas}}{\delta _{d}}$Riser open at both ends, 133 ≤ $Ra$ ≤ 7000 (Hartlein & Black IIa)
Related
$D_{di}$
$D_{o}$
$k_{gas}$
Used in
$h_{conv_{gd}}$