# 4.9.8. Turbulence Model

The `Turbulence Model Specification` block in solution options is where you define which turbulence model you want to use, along with any global model configuration settings. If you omit this block, it defaults to `LAM` (no turbulence model). The available options for the model are `LAM`, `KE`, `LRKE`, `KW`, `LRKW`, `SST`, `LRSST`, `RNG`, `V2F`, `SSTDES`, `SMAG`, `DSMAG`, `KSGS`, `DKSGS`, and `INAGAKI_KSGS`.

    Begin Solution Options

      Begin Turbulence Model Specification my_params
        Turbulence Model = KSGS
      End

The complete list of available commands for the solution options block and the syntax for the different options can be found in Turbulence Model Specification.