ANSYS FLUENT 12.0 Theory Guide - 4.3.3 Modeling the Turbulent Viscosity

4.3.3 Modeling the Turbulent Viscosity

The turbulent viscosity, $\mu_t$ , is computed from

$\mu_t = \rho \widetilde{\nu} f_{v1}$

(4.3-2)

where the viscous damping function, $f_{v1}$ , is given by

$f_{v1} = \frac{\chi^3}{\chi^3 + C_{v1}^3}$

(4.3-3)

and

$\chi \equiv \frac{\widetilde{\nu}}{\nu}$

(4.3-4)

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