Numerical analysis of a hydrofoil in close proximity to free surface

In this study, the hydrodynamic and wave making characteristics of a submerged hydrofoil has been evaluated by numerical techniques. Experimental data available for different depths of submergence and flow velocities have been compared to the results obtained by a commercial RANS CFD code. The capabilities of the numerical approaches in terms of capturing the free surface deformation have been assessed. At high Froude numbers, the induced wave profiles have been observed to exhibit an unsteady nature by RANS numerical method. The uncertainty of the RANS package has also been analyzed for wave amplitude and wave resistance. RANS numerical technique has been validated in terms of the investigated hydrodynamic parameters. Hydrodynamic performance of the submerged hydrofoil variation of lift and drag with Froude number has also been assessed by RANS numerical technique.