| Popis: |
Development, validation and demonstration of a computational approach to model complex rotorcraft hubs, their components and their wakes for both static and rotating operation has been developed. A priori computations were compared with experimental results to yield high confidence in the computational analysis. The hub was analyzed for its total and component drag, including interference drag. Components include hub plates, shanks, pitch links, scissors, and hardware. Wake turbulent spectra were obtained for the near and far field wakes, and wake velocities in the near wake. Scaling, influence of the fuselage, and physics of the wake were all explored. With the highly accurate computational approach developed, design and analysis of hubs can be conducted using computations directly on full-scale configurations. |
