Exploitation of aerodynamic propeller-airframe interactions by integrated design (B02)

• Subject Area: Fluid Mechanics
• Term: since 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 498601949

The project focuses on the exploration of local, unsteady aerodynamic interactions between propellers and laminar wings. In order to increase the overall efficiency of an aircraft, it will be investigated whether a certain laminar run can be retained despite the propeller influence on the wing boundary layer transition. The project is based on high-fidelity CFD simulations using the DLR flow solver TAU as well as time re-solved experiments in a laminar wind tunnel. By developing a surrogate model based integrated design methodology, combining multi fidelity CFD methods, the principal parameter dependencies of the propeller-wing-interactions will be identified in the first project phase. In the following phases, the propeller and the shape of a low-drag laminar wing will finally be optimized to enhance the overall efficiency.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 364: Synergies of Highly Integrated Transport Aircraft - SynTrac
• Major Instrumentation: Extension of measurement equipment ; Vectorflow
• Applicant Institution: Technische Universität Braunschweig
• Co-Applicant Institution: Universität Stuttgart
• Project Head: Dr.-Ing. Thorsten Lutz