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Vermeer constant for convection heat transfer

This constant was introduced by J. Vermeer with a value of 0.16375 in the paper: 'A simple formula for the calculation of the convective heat transfer between conductor and sheath in compressed gas insulated (CGI) cables', 1983 as published in Elektra 87.

Symbol
$K_{vermeer}$
Formulae
$0.079{\cdot}2 \pi \left(g \beta_{gas}\right)^{0.333}$
Related
$\beta_{gas}$
Volumetric thermal expansion coefficient for gas [1/K]
$g$
Standard acceleration of gravity [m/s$^2$]
$\pi$
Archimedes' constant $\pi$
Used in
$K_0$
Coefficient K for a gas under PAC/GIL conditions
$W_{conv,ce}$
Convection heat transfer, conductor to enclosure [W/m]