Thermal resistance offered by the material in layer 1 along the flow path q1.

Symbol
$R_{\mathrm{q31}}$
Unit
K.m/W
Formulae
$\frac{\ln{\left (\frac{2}{D_{\mathrm{o}}} \left(C_{2} \left(d_{\mathrm{T}} - s_{\mathrm{4}}\right) + s_{\mathrm{4}}\right) \right )}}{k_{\mathrm{3}} \operatorname{atan}{\left (\frac{s_{\mathrm{T}}}{s_{\mathrm{4}}} \right )}}$
Related
$D_{\mathrm{o}}$
$k_{\mathrm{3}}$
$s_{\mathrm{4}}$
Used in
$R_{\mathrm{q3}}$
Resistance 3 [K.m/W]