C_1, C₂, C₃, C₄

Unknown constants used for finding expression for temperature in an element

E

Rate of sweat evaporation in gm/cm²/min

e

e^th element

h

Heat transfer coefficient due to conduction and convection in Cal/cm²/min/˚C

K₁, K₂, K₃

Thermal conductivity of subcutaneous tissues, dermis and epidermis respectively in Cal/cm/min/˚C

L

Latent heat of vaporization in Cal/gm

M₁, M₂, M₃

Rate of heat transfer due to blood mass flow per unit volume per unit difference in temperature in subcutaneous tissues, dermis and epidermis respectively in Cal/cm³/min/˚C

N

Interpolation function

n

Normal to skin surface

R

Spatial coordinate originating from the centre of the limb in cm

r

Thickness of peripheral tissues in cm

Local radial coordinate in cm

r₀, r₆

Spatial coordinate of skin core and skin surface respectively starting from core in cm

S₁, S₂, S₃

Metabolic heat generation rate in subcutaneous tissues, dermis and epidermis respectively in Cal/cm³/min

T

Unknown temperature of tissue in ˚C

T_a, T_b

Atmospheric temperature and arterial blood temperature in ˚C

T^(e)

Temperature in e^th element

Nodal temperature matrix of e^th element

t

Time in min

Ω^(e)

Domain of the e^th element

α₀₍₁₎, β₀₍₁₎, γ₀₍₁₎

Unknown constants used to find linear expression for K, M and S respectively in dermis

χ(t), ϕ(t)

Time factor in M and S respectively in abnormal tissues

ρ

Density of tissue in gm/cm³

θ

Angular coordinate in radian