The WALE model, short for Wall-Adapting Local Eddy-Viscosity, is a subgrid-scale turbulence model used in the Large Eddy Simulation (LES) framework for transient CFD. Unlike steady-state RANS approaches, which average turbulence effects, LES directly resolves the large, energy-carrying eddies and models only the smaller scales, allowing for a much more detailed and realistic representation of unsteady flow structures. The WALE model has been developed to overcome limitations of classic Smagorinsky-type LES models, particularly in near-wall regions. It calculates eddy viscosity not only from the strain rate tensor but also from the rotation rate tensor, which ensures that the modeled viscosity automatically goes to zero at solid walls. This prevents excessive damping of turbulence close to surfaces and allows for a more accurate prediction of laminar-to-turbulent transition as well as energy dissipation.