Qconduction_animal: Conductance Assuming Animal Thermal Conductivity is Rate...

In TrenchR: Tools for Microclimate and Biophysical Ecology

Conductance Assuming Animal Thermal Conductivity is Rate Limiting

Description

The function calculates conductance (W) of an ectothermic animal to its substrate. Method assumes the major resistance to conduction is within surface layers of the animal and that the interior of the animal is equal in temperature to its surface (thermally well mixed) \insertCiteSpotila1992TrenchR.

Usage

Qconduction_animal(T_g, T_b, d, K = 0.5, A, proportion)

Arguments

T_g	numeric ground surface temperature (K).
T_b	numeric body temperature (K).
d	numeric mean thickness of the animal skin (surface) in (meters). The function assumes a well mixed interior.
K	numeric thermal conductivity (W K-1 m-1). K = 0.5 for naked skin and K = 0.15 for insect cuticle \insertCiteGalushko2005TrenchR. The conductivity of the ground is generally greater than that of animal tissues, so animal thermal conductivity is generally the rate limiting step.
A	numeric surface area (m2).
proportion	numeric proportion of body in contact with the surface (0-1).

Value

numeric conductance (W).

References

\insertAllCited

See Also

Other biophysical models: Grashof_number_Gates(), Grashof_number(), Nusselt_from_Grashof(), Nusselt_from_Reynolds(), Nusselt_number(), Prandtl_number(), Qconduction_substrate(), Qconvection(), Qemitted_thermal_radiation(), Qevaporation(), Qmetabolism_from_mass_temp(), Qmetabolism_from_mass(), Qnet_Gates(), Qradiation_absorbed(), Qthermal_radiation_absorbed(), Reynolds_number(), T_sky(), Tb_CampbellNorman(), Tb_Gates2(), Tb_Gates(), Tb_butterfly(), Tb_grasshopper(), Tb_limpetBH(), Tb_limpet(), Tb_lizard_Fei(), Tb_lizard(), Tb_mussel(), Tb_salamander_humid(), Tb_snail(), Tbed_mussel(), Tsoil(), actual_vapor_pressure(), boundary_layer_resistance(), external_resistance_to_water_vapor_transfer(), free_or_forced_convection(), heat_transfer_coefficient_approximation(), heat_transfer_coefficient_simple(), heat_transfer_coefficient(), saturation_vapor_pressure(), saturation_water_vapor_pressure()

Examples

  Qconduction_animal(T_g        = 293,
                     T_b        = 303,
                     d          = 10^-6,
                     K          = 0.5,
                     A          = 10^-3,
                     proportion = 0.2)

TrenchR documentation built on Sept. 14, 2023, 1:07 a.m.