What Is the Pseudo Turbulence Spectrum?

The pseudo turbulence spectrum may be used to define inlet and initial conditions for large eddy simulation. The spectrum contains a fixed set of random number sequences that are used to construct fields of either isotropic or anisotropic velocity fields.

Expert Properties

Unless you are thoroughly familiar with the theoretical aspects of this model and the discretization techniques used in STAR-CCM+, we recommend that you not make any changes within the Expert category. The values in that category reflect both the model's design and discretization approaches that have been optimized for accuracy and performance. Tampering with them may diminish the effectiveness of the model.

Spectrum Size	The size of the random number sequence, N in Eqns. (142) and (146). This has a default value of 100.
Random Seed	The seed used in the random number generator. If this number is changed, the sequences of random numbers will be recomputed.