∇

Transport model based on the work of Williams et. al. [89].

Dynamic viscosity, \(\mu\) [Pa.s]

\[\mu = \mu_0 \exp \left( - \frac{C_1 ( T - T_r )}{C_2 + T - T_r} \right)\]

Thermal conductivity, \(\kappa\) [W/mK]

\[\kappa = \frac{c_p \mu}{Pr}\]

Thermal diffusivity, \(\alpha_h\) [kg/ms]

\[\alpha_h = \frac{\mu}{Pr}\]

Usage

The WLF transport model is defined using the entries:

transport
{
    mu0             <scalar>;
    Tr              <scalar>;
    C1              <scalar>;
    C2              <scalar>;
    Pr              <scalar>;
}

Where

  • mu0 : Dynamic viscosity at the reference temperature [Pa.s]
  • Tr : Reference temperature [K]
  • C1 : Model coefficient []
  • C2 : Model coefficient [K]
  • Pr : Prandtl number

Further information

Source code