Modeling > Modeling Turbulence > Using Reynolds Stress Transport Turbulence > Working with Reynolds Stress Transport Solvers > What Is the Reynolds Stress Turbulent Viscosity Solver?

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What Is the Reynolds Stress Turbulent Viscosity Solver?

This solver controls the update of the turbulent viscosity. The node of this solver has its own properties.

Reynolds Stress 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. The update is controlled as follows:

Reynolds Stress Turbulent Viscosity Solver Expert Properties

The properties in the Expert category are designed to be used in a temporary debug situation, at the expense of simulation accuracy and for additional memory usage. We do not recommend that you change any of these properties unless you are thoroughly familiar with the discretization techniques used in STAR-CCM+.

Solver Frozen

Prevents or allows the solver from updating the solution while iterating.

 

Ticked

The solver will not update the solution.

 

Cleared

The solver will update the solution.

     

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