SHIP AIRWAKE INVESTIGATIONS ON SFS2 WITH A HOVERING HELICOPTER ROTOR BY COMPUTATIONAL FLUID DYNAMICS SIMULATIONS

2019-10-30
In this study, Computational Fluid Dynamics simulations of ship airwake for a simple ship geometry are performed for the horizontal and inclined deck configurations and also with and without the helicopter rotor hovering over the deck. In order to investigate the effect of the inclined flight deck due to ship motion, 10 degree roll about longitudinal-axis is given to SFS2. Full-scale, four-bladed S-76 helicopter rotor is selected as the rotor model. Rotor only case in hover is first solved and validated with the available wind tunnel data. An actuator disk model is used for the CFD simulations of a rotor model hovering over the flight deck. All of the computations are performed by using a commercial finite volume CFD flow solver. The unstructured tetrahedral grids are generated in the computational domain including the ship geometry and the rotor disk. The steady-state and unsteady computations with different turbulence models are performed. The CFD results are validated in comparison to the experimental data available in the literature. The simulation results obtained for different cases mentioned above are also compared with each other.
Citation Formats
E. Orbay Akcengiz and N. Sezer Uzol, “SHIP AIRWAKE INVESTIGATIONS ON SFS2 WITH A HOVERING HELICOPTER ROTOR BY COMPUTATIONAL FLUID DYNAMICS SIMULATIONS,” presented at the 8th Asian/Australian Rotorcraft Forum (ARF2019) (30 Ekim - 02 Kasım 2019), Ankara, Türkiye, 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72565.