Modeling > Modeling Turbulence > Using Spalart-Allmaras Turbulence > Working with Spalart-Allmaras Solvers > Spalart-Allmaras Turbulent Viscosity Solver

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Spalart-Allmaras Turbulent Viscosity Solver

This solver controls the update of the turbulent viscosity.

Spalart-Allmaras Turbulent Viscosity Solver Properties

Maximum Ratio

The maximum ratio of turbulent to laminar viscosity () permitted during the update process. This is used to prevent unphysically high values of turbulent viscosity from occurring on the path to convergence.

     

Under-Relaxation Factor

An under-relaxation factor for the update of turbulent viscosity. The default value is 1.0. Let be the value of the previous iteration, and be the value computed during the current iteration using Eqn. 182. Then the update is controlled as follows:

Spalart-Allmaras Turbulent Viscosity Solver Expert Properties

For information about properties in the Expert category, see Expert Properties .

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