The function estimate external resistance to water vapor transfer using the Lewis rule relating heat and mass transport (Spotila et al. 1992)

external_resistance_to_water_vapor_transfer(H, rhocp = 12000)

Arguments

H

numeric heat transfer (convection) coefficient (W m-2 C-1).

rhocp

numeric aggregate parameter (J m-3 C-1) that is the product of the density of air (kg m-3) and the specific heat of air at constant pressure (J kg-1 C-1). Default of 12000 (J m-3 C-1) commonly assumed.

Value

numeric external resistance to water vapor transfer (s m-1).

References

Spotila JR, Feder ME, Burggren WW (1992). “Biophysics of Heat and Mass Transfer.” Environmental Physiology of the Amphibians. https://press.uchicago.edu/ucp/books/book/chicago/E/bo3636401.html.

Examples

  external_resistance_to_water_vapor_transfer(H = 20)
#> [1] 558