Wall modelling is essential for Large Eddy Simulations (LES) at high Reynolds numbers, as it avoids the necessity for extremely fine near-wall grids and excessive computational cost. Conventional wall models typically adjust the wall shear stress by modifying the subgrid-scale viscosity boundary condition. However, the increased effective viscosity inside the boundary layer excessively damps velocity fluctuations. This contradicts Pope’s requirement that LES should resolve approximately 80% of the turbulent kinetic energy. In this work, an alternative approach is investigated based on the wall model introduced by Bose. A Robin-type velocity boundary condition is implemented in the open-source CFD software OpenFOAM®. Unlike traditional methods, this boundary condition permits velocity fluctuations at the wall, enhancing near-wall turbulence and increasing wall shear stress. The proposed velocity boundary condition is evaluated for a turbulent channel flow and a DrivAer geometry.