Thermal resistance offered by the material in layer 3 along the flow path q3.

Symbol
$R_{\mathrm{q33}}$
Unit
K.m/W
Formulae
$\frac{1}{k_{\mathrm{3}} \operatorname{atan}{\left (\frac{s_{\mathrm{T}}}{b_{\mathrm{T}}} \right )}} \ln{\left (\frac{2}{D_{\mathrm{o}}} \left(C_{3} \left(- b_{\mathrm{T}} + d_{\mathrm{T}}\right) + b_{\mathrm{T}}\right) \right )}$
Related
$b_{\mathrm{T}}$
$k_{\mathrm{3}}$
Used in
$R_{\mathrm{q3}}$
Resistance 3 [K.m/W]