# Inlet Turbulence-Generation Cases Synthetic-turbulence inlet generators (SEM, DFSR, PODFS) are the workhorses that feed the solver's atmospheric-boundary-layer and built-environment studies: they inject a fluctuating velocity field at the inlet whose statistics are set by a prescribed mean profile, Reynolds-stress tensor and length scales. These cases isolate the inlet plane itself and verify that what the generator injects matches what was prescribed - the full Reynolds-stress tensor including the off-diagonal shear components, and the target turbulence spectrum - independently of any downstream wall or shear-layer development. They are the regression checks that protect every case relying on a turbulent inflow. ```{toctree} --- maxdepth: 1 --- 01_sem_reynolds_stress/README.md ```