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Proposing Institution

Lehrstuhl für Aerodynamik, TU München
Project Manager

Prof. Dr.-Ing. habil. Christian Breitsamter
Boltzmannstr. 5
85748 Garching
The topics related to the proposed project are helicopter aerodynamics as well as propeller and rotor aerodynamics. Moreover, rotating systems are considered in numerical as well as experimental investigations. One major goal of research in aircraft aerodynamics is the reduction of drag and the increase in efficiency. This directly corresponds to a decrease in fuel consumption and emission, which is required by the societal and market needs nowadays. Additionally, expanding the flight envelope towards higher cruising speeds would be an important innovation in the rotorcraft domain. Several ongoing and completed projects of the Chair of Aerodynamics and Fluid Mechanics of the Technical University of Munich (TUM-AER) provide major contributions related to the improvement of helicopter aerodynamics. The main topics the research staff is working on include the investigations of fuselage drag, main- and tail-rotor aerodynamics, the performance improvement of a helicopter engine intake as well as the design and aerodynamics of propeller configurations. One of the projects building the basis for this proposal is part of a European framework, namely the Joint Technology Initiative Clean Sky 2. The project focuses on the numerical investigation and optimization of the rotor-head aerodynamics of the Clean Sky 2 demonstrator RACER. It represents a promising demonstrator platform paving the way for new technologies and possibilities within the rotorcraft domain. The actual subproject is called FURADO, which stands for Full Fairing Rotor Head Aerodynamic Design Optimization. Due to the fact that the flow around a rotating helicopter rotor is excessively complex, high-fidelity numerical flow simulations have to be applied to correctly resolve the vortex dominated flow phenomena. Aerodynamic investigations on propeller configurations build another research field of TUM-AER. The upcoming demand for electrically powered VTOL vehicles requires efficient propulsion to ensure long air time and cruising range. Additionally, VTOL propeller configurations introduce new flight conditions, varying from axial to highly inclined and even reversed propeller inflow conditions. These new challenges are addressed within this project.

Impressum, Conny Wendler