The function estimates the heat transfer coefficient (Mitchell 1976) using either the relationship in Spotila et al. (1992) or that in Gates (1980) .

heat_transfer_coefficient_simple(V, D, type)

Arguments

V

numeric air velocity (m s-1).

D

numeric characteristic dimension (e.g., diameter or snout-vent length) (m).

type

character choice between "Spotila" and "Gates" for equation to use.

Value

numeric heat transfer coefficient, H_L (W m-2 K-1).

References

Gates DM (1980). Biophysical Ecology. Springer-Verlag, New York, NY, USA.

Mitchell JW (1976). “Heat transfer from spheres and other animal forms.” Biophysical Journal, 16(6), 561-569. ISSN 0006-3495, doi:10.1016/S0006-3495(76)85711-6 , https://www.sciencedirect.com/science/article/pii/S0006349576857116.

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

  heat_transfer_coefficient_simple(V    = 0.5,
                                   D    = 0.05,
                                   type = "Gates")
#> [1] 11.03635