## 8.5.3 Thermal Conductivity Using Kinetic Theory

If you are using the gas law (as described in Section  8.3), you have the option to define the thermal conductivity using kinetic theory as

 (8.5-5)

where is the universal gas constant, is the molecular weight, is the material's specified or computed viscosity, and is the material's specified or computed specific heat capacity.

To enable the use of this equation for calculating thermal conductivity, select kinetic-theory from the drop-down list to the right of Thermal Conductivity in the Materials panel. The solver will use Equation  8.5-5 to compute the thermal conductivity.

Previous: 8.5.2 Thermal Conductivity as
Up: 8.5 Thermal Conductivity
Next: 8.5.4 Composition-Dependent Thermal Conductivity