Analytical Investigation Of Rotor-Strut Potential Interaction Noise
R. Zamponi (Deutsches Zentrum für Luft- und Raumfahrt (DLR), TU Delft - Wind Energy)
A. Zarri (Deutsches Zentrum für Luft- und Raumfahrt (DLR))
Julien Christophe (von Karman Institute for Fluid Dynamics)
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Abstract
This paper presents a methodology to predict the tonal noise radiated by a propeller-strut configuration by modeling the potential inflow distortion induced by the strut. The approach combines a theoretical description of the potential flow around a circular cylinder with the force distribution and induced velocity computed using an unsteady panel method. The analytical results show satisfactory agreement with measurements from previous studies, demonstrating the suitability of the proposed methodology as a fast and effective prediction tool.
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