Numerical investigation of the performance of Contra-Rotating Propellers for a Remotely Piloted Aerial Vehicle

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Abstract

The present work aims at the numerical prediction of the performance of a Contra-Rotating Propellers (CRP) system for a Remotely Piloted Aerial Vehicles (RPAV). The CRP system was compared with an equivalent counter-rotating propellers configuration which was set by considering two eccentric propellers which were rotating at the same speed. Each contra-rotating test case was built by varying the pitch angle of blades of the rear propeller, while the front propeller preserved the original reconstructed geometry. Several pitch configurations and angular velocities of the rear propeller was simulated. Comparisons showed an improvement of the propulsive efficiency of the contra-rotating configuration in case of larger pitch angles combined with slower angular velocities of the rear propeller.

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De Giorgi, M. G., Donateo, T., Ficarella, A., Fontanarosa, D., Eva Morabito, A., & Scalinci, L. (2017). Numerical investigation of the performance of Contra-Rotating Propellers for a Remotely Piloted Aerial Vehicle. In Energy Procedia (Vol. 126, pp. 1011–1018). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2017.08.273

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