Project Details
Projekt
Excitation of aircraft cabin noise by tightly integrated propulsion systems (C05)
Subject Area
Fluid Mechanics
Term
since 2023
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 498601949
The project predicts the acoustic fuselage surface pressure fluctuations, generated by a complex, thrust vectoring propulsor. Configurations with podded and tightly integrated engines will be considered. Further-more, the acoustic relevance of morphing techniques regarding nozzle and rear fuselage deformation is investigated. These pressure data are coupled via an interface to a structural code to analyze the cabin excitation. To capture all source mechanisms the highly efficient Tam & Auriault source model concept is generalized, to enable accelerations by installation and thrust vectoring, and interaction of the convecting pressure near field with surfaces. This extended approach will be validated by zonal LES simulation.
DFG Programme
CRC/Transregios
Applicant Institution
Technische Universität Braunschweig
Project Heads
Dr.-Ing. Christina Appel; Professor Dr.-Ing. Jan Werner Delfs
